Rated 4.89 out of 5 based on 27 customer ratings
(27 customer reviews)

Inserts flat feet | Best plantar fasciitis insoles – Ortho FF 8000

$59.99 $29.99

Feet Ninja Ortho FF  8000 is rated one of the best plantar fasciitis insoles and flat feet inserts.

  • Provides Plantar Fasciitis pain relief
  • Ideal for people with Flat feet/Low arches
  • Ideal for people who spend a lot of time standing on their feet
  • Firm Arch support
  • Unique Triple layer design orthotic providing great arch support and holds your feet in place.
  • May help relieve hip and knee pain caused due to over-pronation.
  • Extra cushioning for Heel Spurs
  • Full size and trimmable –> Fits Men/Women shoe size (6-13)

The 3 layer composition makes this orthotic insole one of the best insole for Plantar Fasciitis or people with low arches.

The unique design provide optimum elevation for the arch and the firm TPU insert helps to hold the feet in place.

The EVA fabric provides great cushioning for the front feet and the breathable material which makes it ideal to be used in running shoes.

The cupped heel design helps hold the heel in position during running or other active sports.The cushioning gel under the heel provides great cushioning which helps to reduce the rebound effect.

The low profile design makes it easily slide into almost any shoes, so now you can have the same level of comfort without having to wear overpriced not so good looking orthopedic shoes.

Feet Ninja Inserts flat feet will help with any flat feet issues giving optimal support for flat arches.

It is designed to help reduce feet pain associated with flat feet and plantar fasciitis, we are sure you will love this insole ♥

In stock


Feet Ninja Ortho FF  8000 is a high-performance orthotic insole.

Ideal for people

  • with Flat feet/Low arches
  • who need Firm Arch support
  • who need extra cushioning for Heel Spurs

The unique design provides a firm arch support for people with flat feet or low arches.

27 reviews for Inserts flat feet | Best plantar fasciitis insoles – Ortho FF 8000

  1. Rated 5 out of 5


    Love this insole!
    I have low arches, this insole provides great support when I do long distance running.

  2. Rated 5 out of 5


    First of all let me tell you this – it is a full-size insole,
    you will have to trim to fit your shoes.

  3. Rated 5 out of 5


    This Insole has nice firm support, helps to hold my feet in position.

  4. Rated 5 out of 5

    Mary Beth

    These were purchased for my husband who gets callouses and he thought these might help that problem.He has only been wearing them for a few days and says that his feet feel much better with these insoles

  5. Rated 5 out of 5

    Shea fathan

    Fantastic support in my dressy flat shoes….

  6. Rated 5 out of 5

    Zena Headen

    These were exact replacements to a different insert I had been using in my running shoes. My feet could tell virtually no difference!

  7. Rated 5 out of 5

    Damion Kelch

    Fits great and works as expected.

  8. Rated 5 out of 5

    Jen Ishee

    These are great. No more ankle pain from pronation.

  9. Rated 5 out of 5


    Walk 12-15 miles per workshift in a warehouse, these and fresh walking shoes every 4 months keep my feet from falling apart. Fit as expected

  10. Rated 5 out of 5

    Hoyt Collinsworth

    Good fit!

  11. Rated 5 out of 5

    Alvaro Chmielewski

    For not being a custom fit it works well!

  12. Rated 4 out of 5

    Lakisha Guidi

    It’s firm and comfortable,good quality!

  13. Rated 5 out of 5

    Gary S

    Definitely an upgrade from the insoles that came with my boots but I was expecting a more noticeable cushion.After using them for a few weeks of daily use, I’m pretty pleased overall with the comfort they provide.

  14. Rated 4 out of 5


    Helps protect the feet and knees from the impact on hard surfaces.

  15. Rated 5 out of 5

    Juli Mcroy

    Helps support your feet, I can walk and feel no pain

  16. Rated 5 out of 5

    Loreen Reck

    I have used Orthotic Insoles because of my flat feet.when i walk too long distance ,my feet will be painful.My feet is comfortable with these insoles. now i can go shopping all day long.haha~~~~

  17. Rated 5 out of 5

    Vertie Dull

    Right size ! Very comfortable for the feet ! Good quality ! Nice color ~

  18. Rated 5 out of 5

    Arlen Lepine

    bought a different SIZE for my brother, and the he said great. “man this is so comfortable” as if he read my mind. lol people, please have a try, you wont regret it!!!

  19. Rated 5 out of 5

    Cole Ruley

    It works fine, I use often in my tennis shoes.My feet really needed these. My feet seem to be adjusting well with these and so far my legs don’t hurt.

  20. Rated 5 out of 5

    Somer Koepsell

    It’s perfect for my shoes. Very comfortable and nice fit.

  21. Rated 5 out of 5

    Marita Lerman

    Morning exercise, put the insole shoes, regardless of walking foot feeling good, very comfortable

  22. Rated 5 out of 5

    Laura Jacobs

    Feet Ninja Insole arrived in mail yesterday.
    Love it, my feet and knee pain is almost gone now.
    It really works!
    This is far better than the over arched insole I purchased from Amazon.

  23. Rated 5 out of 5


    Works as it says, helps with my Plantar Fasciitis pain.
    I have custom insole on my work shoes, got this one to try on my tennis shoes.
    I like the comfort and fit, surprised to say it feels better than the custom.
    Will see how this performs over time.

  24. Rated 5 out of 5

    Gianna D

    I have large feet and this one who fits me!
    Well made insole and good arch support.

  25. Rated 5 out of 5

    Kayla gorbowski

    Like this one!
    No more feet pain when standing.
    Thanks FeetNinja.

  26. Rated 4 out of 5

    Alan gordon

    I have been using it for couple weeks, like the fit and comfort.

  27. Rated 5 out of 5

    Lucas P

    Very nice insole, feels good on my feet.
    No more Plantar Fasciitis pain.

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