FP Insoles Kingfoam Orthotic Fluidx2

Price range: $49.99 through $59.99

🔥 Limited Offer! Buy 1 FluidX3 and get 1 FluidX2 at 50% OFF with code FLUIDX50
 

Price range: $49.99 through $59.99

USA Men's | Women's size
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M4/4.5 | W 6/6.5 M 5/5.5 | W 7/7.5 M 6/6.5 | W 8/8.5 M7/7.5 | W9/9,5 M 8/8.5 | W 10/10.5 M 9/9.5 | W 11/11.5 M10/10.5 | W 12/12.5 M 11/11.5 | W 13/13.5 M 12/12.5 | W 14/14.5 M 13/13.5 | W 15/15.5 M 14/14.5 | W 16/16.5
Thickness
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High (5mm toe 10mm heel) Mid (5mm toe 7mm heel) Thin (3mm toe 5mm heel)
Formula
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Fluidx2 Fluidx3
Graphic
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Bird Watcher Bird Watcher Black Camo / Green Black Camo / Green Black Camo / White Black Camo / White Blue Camo Blue Camo Colours Collectiv AJA Colours Collectiv AJA Dreamer Dreamer FP Elite High Classic FP Elite High Classic Gremlin Gremlin Leopard Leopard Meow Skin Meow Skin Orange Camo Orange Camo Riff Raff aquaberry absorption Riff Raff aquaberry absorption Skeleton Black Skeleton Black Verona Verona White Camo White Camo Orthotic Hi Classic - Infinity Foam Orthotic Hi Classic - Infinity Foam Orthotic Mid Classic - Infinity Foam Orthotic Mid Classic - Infinity F.. Roller Girl
Clear selection
  • FluidX3 — upgraded dynamic comfort using non-Newtonian impact technology.
  • Not recommended for pancake-flat feet — FluidX is designed for low to mid-arch feet that benefit from adaptive movement.
  • The world’s most shock-absorbing insole — unique design with patent-pending technology.
  • Cuts daily fatigue dramatically — average insoles transfer 12,000 - 25,000+ N of shock into the body per step.
    • FluidX transfers only ~2,800–3,000 N.
    • Multiply that by 10,000 steps a day and the difference is massive.
  • Mid Profile includes Heel Saviors for added impact protection and comfort.
  • High Profile designed for sports and action sports.
  • Mid Profile designed for walking and moderate sports.
  • Low Profile designed for dress shoes and low-volume footwear.

Description

Every Arch Is Different. FluidX2 Fills the Space.

Every foot has a different arch height, curve and hollow space underneath it. Standard rigid insoles use one fixed shape, which may not make complete contact with every arch.

FluidX2 uses an internal liquid-filled chamber that moves into the open space beneath your individual arch. This helps provide more personalized contact without requiring oven molding or forcing the foot onto one rigid shape.

Meet FluidX2 Liquid-Filled Orthotic Technology

FluidX2 contains a liquid-filled support chamber beneath the arch.

When pressure is applied, the liquid moves into the hollow space underneath your foot. Instead of relying on one pre-shaped arch, FluidX helps fill the individual space beneath each user’s arch.

This creates more complete contact while allowing the foot to move naturally during standing, walking and active movement.

How FluidX2 Works

  • Pressure activates the internal liquid system
  • Liquid moves into the hollow area beneath the arch
  • Support forms around different arch shapes
  • No heat molding is required
  • The system readjusts as pressure changes
  • FP cushioning protects the heel and forefoot
fp-insole-Fluidx2

Most Insoles Stay The Same. Every Arch Is Different.

Every arch has a different height, curve and hollow space underneath it. The pressure beneath your foot also changes as you:

  • Walk
  • Run
  • Stand
  • Land
  • Shift your weight

Traditional foam insoles may compress under repeated pressure, while rigid inserts maintain one fixed shape. Neither option adjusts to the changing pressure beneath your foot.

FluidX2 uses an internal liquid system that moves into the open space beneath your arch. Instead of forcing your foot against a single rigid structure, it helps provide support that better matches your individual foot contour.

FluidX responds to pressure rather than resisting movement, helping create more consistent arch contact and support throughout each step.

FP Kingfoam Orthotics FluidX. Features non-Newtonian arch tech & 90% shock absorption.

Choose Your Formula

FluidX2 — Original Formula

FluidX2 is the original version of FP’s liquid-filled orthotic system.

Choose FluidX2 when you specifically want the original formula and its pressure-responsive arch-support design.

FluidX3 — Upgraded Formula

FluidX3 is the updated version of FluidX technology.

It should be presented as the current upgrade for customers who want the latest available formula. FluidX3 is also covered by FP’s one-year product warranty.

FluidX2 Support With Infinity Foam Cushioning

FluidX2 technology supports the hollow area beneath the arch, while FP Infinity Foam cushions repeated impact through the heel and forefoot.

These two technologies serve different purposes:

  • FluidX liquid technology helps fill the individual arch space
  • Infinity Foam helps cushion repeated force
  • The FluidX system supports the arch without heat molding
  • Infinity Foam provides comfort during work, walking and activity

Together, they provide arch contact, cushioning and impact protection inside one insole system.

Performance data Analytics

FP tests its insole materials under controlled impact conditions to compare force reduction and repeated-impact performance.

15 joules
50j

Up to 90% Shock Absorption With FP Cushioning

Every step creates force. FluidX combines liquid-filled arch support with FP cushioning to help manage impact during:

  • Walking
  • Running
  • Training
  • Working
  • Standing
  • High-impact activity

FP states that its cushioning material can absorb up to 90% of shock energy, helping reduce force through the:

  • Heels
  • Ankles
  • Knees
  • Hips
  • Lower back

The cushioning protects the heel and forefoot, while the FluidX chamber fills the hollow space beneath the arch for personalized support and stability.

fp-insoles

Proven shock protection

Watch FP impact demonstrations and real-world product tests to see how FluidX support and FP cushioning respond during repeated force and high-impact use.

Cushioning ≠ Shock Absorption

Who FluidX Is For

FluidX may be suitable for users who:

  • Want support that fills the hollow space beneath their arch
  • Have low-to-mid arches
  • Prefer support without oven molding
  • Find rigid pre-shaped orthotics uncomfortable
  • Spend long hours standing or walking
  • Need cushioning for work or athletic footwear
  • Want a choice between the original and upgraded FluidX formulas
  • Prefer a balance of support, flexibility and cushioning
Who FluidX is For

Choose the Right FluidX Profile

Thin Profile

Best for low-volume footwear with limited internal space, including skate shoes, cleats and slim athletic shoes.

Mid Profile

A balanced option for running shoes, training shoes, work shoes and everyday footwear.

High Profile

Designed for work boots, hiking footwear and shoes with more internal space.

Choose a profile close to the thickness of the original insole inside your shoe.

What You’ll Feel Every Day

  • Liquid support filling the hollow space beneath the arch
  • Cushioning through the heel and forefoot
  • More complete contact under the arch
  • A stable but flexible feel
  • Support without oven molding
  • Reduced harshness during repeated impact
  • No hard, fixed orthotic shape
What You’ll Feel Every Day

How to Trim and Fit FluidX Insoles

1. Remove the original insole from your shoe.

2. Place it over the FluidX insole.

3. Align both insoles at the heel.

4. Trace the toe shape when trimming is required.

Do not trim into the liquid-filled arch chamber.

5. Cut gradually around the toe area.

6. Place the FluidX insole inside the shoe.

7. Confirm that it lies flat without curling.

8. Test the fit before extended wear.

Waranty 1

One-Year Warranty for FluidX3

FluidX3 is backed by FP’s one-year product warranty.

If an eligible product issue occurs during the warranty period, contact FP customer support with your order information and clear product photos.

FP Insoles is
rated Excellent

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Frequently Asked Questions (FAQs)

Q1. What is the difference between FluidX2 and FluidX3?

FluidX2 is the original formula. FluidX3 is the upgraded version available through the same product page.

Q2. Do FluidX2 and FluidX3 require heat molding?

No. FluidX uses an internal liquid support chamber that fills the hollow space beneath the arch without oven molding.

Q3. Does the one-year warranty apply to both formulas?

No. Based on the current FP product information, the one-year product warranty applies to FluidX3. It should not be presented as FluidX2 coverage unless FP confirms otherwise.

Q4. Can FluidX Insoles be trimmed?

Yes. The toe area can be trimmed using the original shoe insole as a template. Do not cut into the liquid-filled arch chamber.

Q5. Which FluidX profile should I choose?

Choose Thin for low-volume shoes, Mid for most everyday footwear and High for boots or shoes with greater internal space.

Coverage Period: Infinity Foamâ„¢ insoles are covered by a one (1) year limited warranty from the original date of purchase.

What This Warranty Covers, During the warranty period, the following are guaranteed under normal and intended use:

  • Shock Performance & Material Integrity.
  • Infinity Foamâ„¢ will maintain its non-Newtonian shock-absorbing properties for a minimum of one (1) year.
  • Performance loss due to normal compression or impact exposure within this period is covered.

Fabric & Construction

The toe fabric will not delaminate from the insole during normal use within the one-year period.

Remedy Structure:

0–6 Months from Purchase.

Qualifying warranty claims receive a one-time instant replacement at no cost.

6–12 Months from Purchase.

Qualifying warranty claims receive 50% off a replacement pair of the same or comparable model.

What This Warranty Does NOT Cover:
This warranty does not apply to damage caused by misuse, improper fit, or abnormal wear, including but not limited to:
Excessive fabric wear or holes caused by heavy foot drag, toe clawing, or friction resulting from:

* Improper shoe fit.
* Failure to properly lace or secure footwear.
* Normal cosmetic wear that does not affect performance.

Additional Terms

* Proof of purchase is required for all warranty claims.
* Warranty applies only to the original purchaser and is non-transferable.
* Replacement or discount remedies are the sole remedies available under this warranty.

Additional information

Weight 0.5 lbs
Dimensions N/A
USA Men's | Women's size

M4/4.5 | W 6/6.5, M 5/5.5 | W 7/7.5, M 6/6.5 | W 8/8.5, M7/7.5 | W9/9,5, M 8/8.5 | W 10/10.5, M 9/9.5 | W 11/11.5, M10/10.5 | W 12/12.5, M 11/11.5 | W 13/13.5, M 12/12.5 | W 14/14.5, M 13/13.5 | W 15/15.5, M 14/14.5 | W 16/16.5

Thickness

High (5mm toe 10mm heel), Mid (5mm toe 7mm heel), Thin (3mm toe 5mm heel)

Graphic

Bird Watcher, Black Camo / Green, Black Camo / White, Blue Camo, Colours Collectiv AJA, Dreamer, FP Elite High Classic, Gremlin, Leopard, Meow Skin, Orange Camo, Riff Raff aquaberry absorption, Skeleton Black, Verona, White Camo, Orthotic Hi Classic – Infinity Foam, Orthotic Mid Classic – Infinity Foam, Roller Girl

Formula

Fluidx2, Fluidx3