King Foam FP Insoles

Price range: $19.99 through $31.99

  • Trim to fit! Get any size the same or larger than yours!

  • King Foam FP Insoles
  • Compatible with all foot types
  • Trimmable- if your size is out, get one size up and trim with scissors.
  • Best for mid to high arch
  • Absorbs 91% of impact energy in lab testing compared to 53% in other “performance” insoles (ASTM F 1614 -1999)
  • Our proprietary material in the exact same formulation is used by NASA on the ISS for sensitive electronics protection
Buy any insole and get a second classic formula insole for 50% off, use code Classic50

Price range: $19.99 through $31.99

USA Men's | Women's size
This option is required
Large (M 10-14.5 /W 10-16) Medium (M 6.5-10/ W 8-12) Small (M 3-8 / W 5-10) 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 13/13.5 | W 15/15.5
Thickness
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3mm 5mm 7mm
Formula
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2026 Classic
Graphic
This option is required
Black Camo / White Dane Burman Atlas Dark Grey Camo / Green Green camo Otaku Red Camo Black Camo / Red Dane Burman Tea Party - Infinity Foam Red Camo - Infinity Foam
Clear selection
SKU: KFI Categories: ,

Description

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10,000 Steps. Thousands of Micro Trauma Events.

The average person takes around 10,000 steps a day. With every step, impact shock creates tiny stresses on the body that lead to soreness and fatigue. Most insoles don’t effectively absorb that shock— FP does.

fp-insolesn-other -insoles

Proprietary Material That absorbs impact

  • Soft insoles feel good at first
  • Foam flattens quickly
  • Comfort disappears with daily use
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FP Absorbs 90% of Shock Energy

Compared to 53% in other Performance Insoles

Space 1

NASA supplier. Our proprietary material is used for shock absorption on the International Space Station.

Nasa 1

Designed for Daily Use & Active Lifestyles

It works for all feet, Recommended
for high arch

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Performance data Analytics

15 joules
50j

4x the shock absorption of competitors

4x the shock absorption of competitors
FP INFINITY FOAM 1

Infinity Foam

Comfortable In EveryTemperature.

Infinity Foam is a super polymer that remains soft and responsive in all temperatures.

It eats shock energy like no other material.

Whether walking, running, or jumping off stairs, Infinity Foam reacts at every level.

Indestructible

infinity foam 1 (1)
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Proven shock protection

Cushioning ≠ Shock Absorption

Waranty 1

Try FP risk free.

Backed by a 1-year warranty.

If it doesn’t perform, we stand behind it

Upgrade Your Insoles 
Real Shock Absorption Starts Now

FP Insoles is
rated Excellent

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Coverage Period: Infinity Foam™ 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 Foam™ 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 12 × 4 × 3 in
USA Men's | Women's size

Large (M 10-14.5 /W 10-16), Medium (M 6.5-10/ W 8-12), Small (M 3-8 / W 5-10), 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

Thickness

3mm, 5mm, 7mm

Formula

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