Samurai Insoles Ninjas Plantar Fasciitis Relief Arch Support Shoe Insoles - Podiatrist Designed, Orthotic Lab Made in The USA

3.8 3.8 out of 5 stars 22,119 ratings
Price: $32.99 Free Returns on some sizes and colors
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Color: Purple

Product details

  • Origin
    Made in USA

About this item

  • FOCUSED RELIEF: Samurai Insoles Ninjas are all about that arch. They go after the real cause of plantar fasciitis, heel pain, shin splints, neuromas, tendonitis, and more. Forget cushiony gimmicks - Ninjas provide the solid, springy support that tackles pain at its core. Imagine the relief you'll feel when you finally address the root of your discomfort.
  • EASY UPGRADE: Transform your shoes with removable insoles into lean, mean, comfort machines. Just slide Ninjas 3/4 length orthotic inserts under your current insoles and feel the difference. No hassle, no fuss.
  • ORTHOTIC LAB MATERIAL: Crafted from ultra-durable yet incredibly springy polypropylene plastic for unmatched comfort and longevity. Samurai Insoles Ninjas give you solid arch support without the usual pitfalls of cheap foams or gels - no wear and tear, no funky smells, and no soggy insoles.
  • PRO-DESIGNED, USA MADE: Designed by a top podiatrist and crafted in a high-tech orthotic lab right here in the USA, you’re getting top-tier quality and innovation with every pair.
  • TAILORED FIT: Forget those vague, one-size-fits-all ranges. We offer 13 precise sizes, so your feet get the perfect fit they deserve. Heads up: Ninjas are designed only for shoes with removable insoles, and might need a short adjustment period, but the comfort payoff can be huge!
  • PLEASE NOTE: Samurai Insoles Ninjas are plastic arch support insoles with no foam or cushioning present. The product is 3/4 length, not a full length insole. They must be placed underneath a shoes already present insole to be effective and comfortable. This may not be possible in all shoes. If used directly against the foot, Samurai Insoles Ninjas will feel too hard, too small, too narrow, and/or uncomfortable. Providing comfortable arch support may provide relief from many common types of foot discomfort, including plantar fasciitis, for many people, but not necessarily everyone.

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 6.69 x 2.36 x 0.79 inches; 1.45 ounces
  • Item model number ‏ : ‎ 4332583289
  • Department ‏ : ‎ unisex-adult
  • Date First Available ‏ : ‎ October 19, 2017
  • Manufacturer ‏ : ‎ Samurai Insoles
  • ASIN ‏ : ‎ B076KNTQ52
  • Customer Reviews:
    3.8 3.8 out of 5 stars 22,119 ratings

Product Description

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

Samurai Insoles Ninjas shoe inserts demonstration

Merchant Video

Just Say "No" to Cheap Foam Insoles

Samurai Insoles Ninjas are our best-selling orthotic arch support shoe inserts


Forget cushiony gimmicks - Ninjas orthotic arch support shoe inserts provide the solid, springy support that tackles common types of foot issues at their core. Ninjas are crafted from an ultra-durable, yet incredibly springy, polypropylene polymer for unmatched comfort and longevity. Avoid the usual pitfalls of cheap foams or gels - no wear and tear, no funky smells, and no soggy sweaty insoles. Ninjas are podiatrist developed and crafted in an orthotic laboratory right here in the USA.

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

Kick Foot Pain to the Curb

Merchant Video

Kick Foot Pain to the Curb


Forget those vague, one-size-fits-all ranges. We offer THIRTEEN PRECISION SIZES, so your feet get the perfect fit they deserve. Simply select your Samurai Insoles Ninjas size based on the size of shoe you will be wearing them in. Samurai Insoles Ninjas are the perfect choice for medium-fitting footwear with a removable insole like running shoes, casual sneakers, roomy dress shoes, basketball shoes, pickleball shoes, medium fitting boots and more.

nosupportequalsfootpain
placeninjasunderneathinsoles
coverwithshoesinsoles
kickpaintothecurb

All day relief is as easy as 1-2-3!

  • Place the Ninja insert UNDER your shoe's insole with the label face down.
  • Be sure the Ninja insert remains well seated against the rear of the shoe. Cover with your shoe's insole.
  • Use the enclosed hook and loop fastener to secure the Ninja insert to the bottom of the shoe ONLY if you experience slipping of the Ninja insert during use.

plantar fasciitis relief insoles instructions ninjas

Versatility for Every Adventure

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Sneakers

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Boots

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Casual

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Dress and Golf

  • No. Samurai Insoles Ninjas are plastic arch supports with no foam or cushioning present. They must be placed underneath a shoes already present insole to be effective and comfortable.

  • No. Samurai Insoles Ninjas are 3/4 length, not a full length insole. They are designed to comfortably support the arch of the foot and not extend beyond the ball of the foot.

  • No. Samurai Insoles Ninjas are only compatible with a shoe with a removable factory insole.

  • Samurai Insoles Ninjas are designed to comfortably support the arch of the foot. Despite appearing narrow for some, Ninjas are designed to provide comfortable arch support when placed under the shoe's removable insoles.

  • Your feet may need some time to get used to the support of Ninjas for maximum comfort. Start with wearing them an hour/day, and work your way up from there! For safety, we must recommend discontinuing use of Ninjas if pain is increased during use.

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Customer reviews

3.8 out of 5 stars
22,119 global ratings

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Customers say

Customers appreciate the shoe inserts for their pain relief, functionality, and arch support. They find them effective at relieving discomfort and providing comfort. Many customers like the quality and durability of the insoles. However, some dislike the plastic material. Opinions vary on value for money and fit.

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Pain reliefFunctionalityArch supportInsole qualityDurabilityValue for moneyFitPlastic material
1,667 customers mention "Pain relief"1,189 positive478 negative

Customers report the insoles provide comfort and relief from pain. They say the insoles help with discomfort, especially heels and plantar fasciitis.

"...have gone from hurting to where I did not want to walk, to having reduced pain which will enable my feet to heal and I’ll no longer have any pain in..." Read more

"...They WORK! I could slowly feel the foot and knee pain going away and within about a week to ten days of wearing them, all of the pain was gone...." Read more

"...These insoles are just a hard plastic. Very little relief from pain. Again, the seller was easy to work with and delivered in a very timely manner." Read more

"I was told that these insoles were great for plantar fasciitis. I have had them in my shoes for weeks now and I am not seeing any difference...." Read more

499 customers mention "Functionality"357 positive142 negative

Customers like the shoe insert's functionality. They say it works well and provides support. Some say it's more effective over the long term and resolves their problem after several weeks.

"I understand why these little purple pieces of plastic work so well, they shift the weigh of the foot from off the heal and the ball of the foot to..." Read more

"...I came across these inserts and decided to give them a try. They WORK!..." Read more

"Didn’t work for me as well as a couple of other products have. As always however, Your Mileage May Vary." Read more

"...My heals weren’t hurting so bad. They work amazingly. The other inserts I bought I haven’t even opened them yet." Read more

317 customers mention "Arch support"253 positive64 negative

Customers appreciate the arch support provided by these insoles. They find them comfortable and helpful for providing extra cushioning and support under high arches. Some say the insoles provide better support than custom-made supports from podiatrists.

"...Definitely help me with my discomfort. Great foot support. 5 stars for sure." Read more

"I like the support , less discomfort" Read more

"These really support my arch" Read more

"...of some special plastic because they are pretty sturdy and give very strong support for how thin they look and feel...." Read more

270 customers mention "Insole quality"200 positive70 negative

Customers like the insole quality. They say it's great, magnificent, and fits perfectly in tennis shoes. The insoles make casual sneakers like Adidas Gazelles comfortable to wear. They are sturdy and give very strong support.

"...The size is perfect, and the design seems to be just right...." Read more

"...That allows you to try different inserts and use the ninja part for a different experience. Haven't tried it yet but considering it...." Read more

"...Reason for 4 stars and not 5…. They are so squeaky and squishy sounding! (Listen to my video) I sound like a certain walking talking cartoon squid ...." Read more

"Those who are flat footed these ninjas are life savers! Thank you" Read more

180 customers mention "Durability"164 positive16 negative

Customers appreciate the durability of the shoe inserts. They say the inserts hold up well, are made of hard plastic, and don't wear out quickly. The inserts provide good arch support and don't bend or loosen over time. Many customers find them great for all-day use and can extend boot life before resoles or new purchases.

"...They fit okay in my shoes and are very durable. I am not sure if I would buy them again." Read more

"...Ninja insoles provide me the comfort, cushioning, stability at a reasonable price far less than my custom podiatry insoles & more effective in..." Read more

"...But, I find that I can wear these all day, and my feet don't become fatigued...." Read more

"...insoles must be made of some special plastic because they are pretty sturdy and give very strong support for how thin they look and feel...." Read more

490 customers mention "Value for money"337 positive153 negative

Customers have mixed opinions about the value for money of the shoe inserts. Some find them well worth the price, saying the production cost is much lower than what they are asking. Others feel the price makes it too costly and the inserts lack arch support.

"...These Ninja insole inserts saved me time and money that I’m absolutely certain would’ve been spent seeing my Podiatrist. #..." Read more

"...Ninja insoles provide me the comfort, cushioning, stability at a reasonable price far less than my custom podiatry insoles & more effective in..." Read more

"...I do think the price is higher than it should be. $20 - $25 is a better price, compared w/others on the market that are effective...." Read more

"Great product" Read more

380 customers mention "Fit"253 positive127 negative

Customers have different experiences with the fit of the shoe inserts. Some find them comfortable and easy to use in their walking and hiking shoes. Others mention that the insoles are too small, making the shoes fit tighter, and not the full length of the shoe.

"...The size is perfect, and the design seems to be just right...." Read more

"...They fit okay in my shoes and are very durable. I am not sure if I would buy them again." Read more

"...These helped some but they are really too short and always slid down in my shoes causing me to have to readjust them all the time...." Read more

"Easy to use fits u der insole" Read more

233 customers mention "Plastic material"55 positive178 negative

Customers dislike the plastic material. They mention it's hard and rigid, so they don't get the cushioning they expect. Some say the insoles are made of some special plastic because they are pretty sturdy, while others find them flimsy and not offering much arch support at all.

"...Because these are hard plastic, they did take a day or two to get used to, and they did slip a little...." Read more

"...These insoles are just a hard plastic. Very little relief from pain. Again, the seller was easy to work with and delivered in a very timely manner." Read more

"I like the idea, but the insoles are hard or rigid, so you don’t get the cushion that you normally get from your tennis shoes...." Read more

"...Rubber cement is good cuz if you don't like it you're not stuck with it like if you used a silicone glue...pun intended...." Read more

The sizes are mislabeled
4 out of 5 stars
The sizes are mislabeled
I've been struggling and struggling to find 3/4 length arch supports. The prior Ninja's never worked. I finally realized that they might be too small. I just ordered a size larger. Wow! They feel so much better...and then I realized that the Ninja yellow sticker on the bottom was intentionally covering the European shoe size. Um, why did Ninja sell me a EU 37 for a size 8.5 Women's? I have reliably been a EU 39. So, now that I've ordered Ninja women's size 9-9.5, I get an EU 38. I wonder what it takes to get an EU 39? Regardless, getting the larger size is soo much more comfortable and hopefully will alleviate the foot cramps I get when wearing the too small-sized supports in my flat ankle boots.
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Top reviews from the United States

  • Joyous Peace
    5.0 out of 5 stars Reducing and removing foot pain
    Reviewed in the United States on February 14, 2025
    Color: PurpleSize: M11-11.5 or W13-13.5Verified Purchase
    I understand why these little purple pieces of plastic work so well, they shift the weigh of the foot from off the heal and the ball of the foot to evenly spread it across the entire foot evenly. My feet have gone from hurting to where I did not want to walk, to having reduced pain which will enable my feet to heal and I’ll no longer have any pain in my feet. The size is perfect, and the design seems to be just right. Thanks for these little wonder workers for my feet, I was dreading coming to work everyday and now my feet are alive again!
    5 people found this helpful
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  • bdb300
    5.0 out of 5 stars Really helped heal an injury
    Reviewed in the United States on January 29, 2025
    Color: PurpleSize: M9-9.5 or W11-11.5Verified Purchase
    Occasionally I have some minor issues with PF so I have one pair of inserts which I rotate between three pairs of shoes when needed. Recently I slipped while wearing socks and a few days later I developed PF. This time the PF was worse and was causing a limp when walking, which then irritated the knee on the same leg and the hip on the opposite leg. I came across these inserts and decided to give them a try. They WORK! I could slowly feel the foot and knee pain going away and within about a week to ten days of wearing them, all of the pain was gone. Because these are hard plastic, they did take a day or two to get used to, and they did slip a little. You ABSOLUTELY MUST put them under your removeable soles. I ended up using the included Velcro to hold them in place, and that did the job. These things are wonderful for me so now I'm going to order at least one more pair.
    3 people found this helpful
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  • Bobbi Snyder
    4.0 out of 5 stars Shoe Insoles
    Reviewed in the United States on March 5, 2025
    Color: PurpleSize: M9-9.5 or W11-11.5Verified Purchase
    I was told that these insoles were great for plantar fasciitis. I have had them in my shoes for weeks now and I am not seeing any difference. They fit okay in my shoes and are very durable. I am not sure if I would buy them again.
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  • Jesse or Sarah Lopez
    5.0 out of 5 stars PREVENTED full blown plantar fasciitis!!
    Reviewed in the United States on September 30, 2021
    Color: PurpleSize: M6-6.5 or W8-8.5Verified Purchase
    OMGOSH, I freakin’ LOVE Amazon (and no, I have no affiliation with them!!) I “almost always” find EXACTLY what I need with minimal effort.

    I have had the very UNfortunate experience of enduring the AWFUL, INTENSE PAIN that accompanies the heel of the foot from having plantar fasciitis. Twice. Almost three times- if it weren’t for these Samurai Insoles Ninja inserts. If you’ve never experienced plantar fasciitis then you won’t be able to fully comprehend how debilitating the stabbing pain can become- literally, physically it can bring you to a crawl. If you have had plantar fasciitis then you wouldn’t wish this kind of excruciating pain on your worst enemy - - OK…OK…maybe your “worst” enemy.

    Anywho, so having plantar fasciitis is horrible. The only positive, if you want to call it that, which comes to mind from having suffered through plantar fasciitis is that you can almost immediately recognize the onset of another bout, should you be unfortunate to get one. And that is precisely where these Samurai Insoles Ninja inserts helped in my case. I had, admittedly, forgotten my Podiatrists instructions to avoid walking barefoot, even inside my own home due to the lack of arch support my feet have, which is what triggers my feet issues (NOTE: different Dr’s & Podiatrist’s prescribe different treatments - some suggest wearing shoes all day long, while others recommend being barefooted, so follow whatever instructions your own Podiatrist or Healthcare advisor gives you), and within about a 2.5 weeks timeframe of going shoeless I woke up one morning and felt the ever so slight, but VERY familiar, pain of plantar fasciitis. Instantly I threw my shoes on and wore them the next two days ‘round the clock, hoping I could reverse, or at least halt, PF onset in its tracks before getting worse. Thankfully it didn’t seem to be getting worse, buuuut I also noticed that it wasn’t getting any better either. *My heel still hurt* I jumped on Amazon, ordered these Samurai Insoles Ninja inserts, IMMEDIATELY put them in my most commonly worn shoes (my ASICS), and wore them non-stop all waking hours. Still do. After putting these in my shoes and wearing them daily, along with doing exercises to strengthen my calves, I - literally - kid you not, felt NOTICEABLE improvement within TWO DAYS!! After following this routine (inserts + calf stretches) just shy of two weeks, I DID NOT HAVE ANY FEET PAIN, whatsoever, not even the slightest hint of PF, nor any other foot strain in either feet. In fact, even though all feet pain is gone, I have not removed these inserts. They remain in my shoes still today, three months after purchasing.

    If you fear you have plantar fasciitis, I STRONGLY recommend these Samurai Insoles Ninja inserts to help ease or reverse inflammation and pain. To speed up your recovery I also highly suggest the Vive Foot Rocker, which I used in conjunction with wearing these Samurai Ninja inserts to accelerate the healing process. These Ninja insole inserts saved me time and money that I’m absolutely certain would’ve been spent seeing my Podiatrist.

    #PF #PlantarFasciitis #FeetPain
    145 people found this helpful
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  • Eddie
    5.0 out of 5 stars Heel Pain 95% gone. Terrific insole
    Reviewed in the United States on March 6, 2025
    Color: PurpleSize: M10-10.5 or W12-12.5Verified Purchase
    I purchased these on Feb 22 2025 to try since none of the other sofe inserts were helping my heel pain.
    I even went to the Foot store and they wanted $1600.00 for their inserts. I puirchased these from amazon for $32.00
    I started to feel relief as soon as I started wearing them. I am walking better and have little to next to nothing pain on my heel. I plan to purchase anther pair for my other sneakers.
    I did contact the manufacture with a question and they got back to me in a short peroid of time
    I am 100% satified with the Samural Insole Ninjas. Thank You for relieving the heel pain
    I just received my second set of Insoles. I put them in my Sketcher sneakers and they feel outstanding. I can now wear the sketchers again. I recommend these insoles 100 %
    One person found this helpful
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  • Jason B.
    3.0 out of 5 stars Seller was great to work with, but the product is over-priced
    Reviewed in the United States on February 23, 2025
    Color: PurpleSize: M10-10.5 or W12-12.5Verified Purchase
    You can get a higher quality insole from walmart. These insoles are just a hard plastic. Very little relief from pain. Again, the seller was easy to work with and delivered in a very timely manner.
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  • Sasquatch
    2.0 out of 5 stars NOT DESIGNED TO TREAT ANY MEDICAL CONDITION - CAN CAUSE MORE PROBLEMS W/YOUR FEET
    Reviewed in the United States on January 12, 2025
    Color: PurpleSize: M13-13.5 or W15-15.5Verified Purchase
    WHO IS THE PODIATRIST USED IN ADVERTISING?

    these iserts took my money - i ask to cancel reoccuring subscriptions and they sent them anyway and then i had to return.

    See a podiatrist first - i had nerve issues with my tunnel tarsal and these did absolutely nothing but hurt - if you have basic problems then the podiatrist will discover or more problems like dorsal calcanal spurs causing pain and tarsal tunnel (similar to carpal tunnel in wrist) -- these wont do anything.

    They will all say they arent meant to treat any medical condition - as if they as supposed to help heartburn - sasquatch is not happy about this purchase so i am letting you guys/gurls and every other label they can thin of what these dont treat - they dont treat anything except simple probems with arch and can do harm..

    they wont tell you they can do harm - but will tell you they dont treat anything and can do harm!!!

    Sasquatch out - dont get bad feet at good feet.
    4 people found this helpful
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  • anthony alvarado
    5.0 out of 5 stars Ninjas are the best
    Reviewed in the United States on March 1, 2025
    Color: PurpleSize: M8-8.5 or W10-10.5Verified Purchase
    As a person who suffers from plantar fasciitis all my life, I have bought a bunch of different types of insole and none work with the pain on being on my feet all day. Let me tell you, these Samurai Insoles Ninjas are the best. Definitely help me with my discomfort. Great foot support. 5 stars for sure.
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Top reviews from other countries

  • Debbie D
    5.0 out of 5 stars Comfortable, flexible and fair priced
    Reviewed in Canada on May 24, 2024
    Color: PurpleSize: M6-6.5 or W8-8.5Verified Purchase
    I lost my custom orthotics about a year ago and was suffering terribly with plantar fasciitis. My daughter bought these orthotics for my granddaughter to use especially in her soccer shoes. She no longer complains of painful feet when she gets off the pitch. So I gave them a try. I’ve been wearing them for over a week now and they are very comfortable to wear! I just lift the heel portion of the insole and insert the orthotics. They allow my foot and ankle to move like they were intended to and yet they provide the necessary arch support without paying $500 for custom orthotics. Will definitely buy these again!!!
    Report
  • Bonni S. Mulligan
    2.0 out of 5 stars Waste of money
    Reviewed in the United Kingdom on August 8, 2023
    Color: PurpleSize: M6-6.5 or W8-8.5Verified Purchase
    I received these recently and promptly put them in my shoes per the instructions. I've noticed no difference in my plantar fascitis even with doing the excercises that I do, and even after several weeks. Waste of money!
    Report
  • Mohamad Zain Ariff
    5.0 out of 5 stars Good quality
    Reviewed in the United Kingdom on June 3, 2019
    Color: PurpleSize: M9-9.5 or W11-11.5Verified Purchase
    Good quality and nice fit.
    One person found this helpful
     Report
  • D & A K
    4.0 out of 5 stars I had to put a foam liner over it, but has helped my heel pain.
    Reviewed in Canada on February 12, 2025
    Color: PurpleSize: M6-6.5 or W8-8.5Verified Purchase
    Firm, but works!
    Report
  • Kei
    4.0 out of 5 stars Effective
    Reviewed in the United Kingdom on September 30, 2022
    Color: PurpleSize: M9-9.5 or W11-11.5Verified Purchase
    These insoles help my flat feet. I strongly recommend them.
    Report