If you don't like it it's FREE
Free Shipping Worldwide
Risk-free with 30-day money-back guarantee
If you don't like it it's FREE
Free Shipping Worldwide
Risk-free with 30-day money-back guarantee
If you don't like it it's FREE
Free Shipping Worldwide
Risk-free with 30-day money-back guarantee
If you don't like it it's FREE
Free Shipping Worldwide
Risk-free with 30-day money-back guarantee
If you don't like it it's FREE
Free Shipping Worldwide
Risk-free with 30-day money-back guarantee
If you don't like it it's FREE
Free Shipping Worldwide
Risk-free with 30-day money-back guarantee

Sizing Chart
US Size | EU Size | UK Size | Length (cm) | Length (In) |
---|---|---|---|---|
3.5 | 36 | 4 | 23.5 cm | 9.25 in |
4 | 37 | 4.5 | 23.8 cm | 9.37 in |
5 | 38 | 5.5 | 24.5 cm | 9.65 in |
6 | 39 | 6.5 | 25.1 cm | 9.88 in |
6.5 | 40 | 7 | 25.4 cm | 10.00 in |
7.5 | 41 | 7.5 | 25.7 cm | 10.12 in |
8 | 42 | 8 | 26.0 cm | 10.24 in |
9 | 43 | 8.5 | 26.7 cm | 10.51 in |
9.5 | 44 | 10 | 27.3 cm | 10.75 in |
10.5 | 45 | 11 | 27.9 cm | 10.98 in |
11.5 | 46 | 12 | 28.6 cm | 11.26 in |
12 | 47 | 13 | 29.2 cm | 11.50 in |
12.5 | 48 | 13.5 | 30.0 cm | 11.81 in |
13 | 49 | 14 | 30.5 cm | 12.01 in |
13.5 | 50 | 14.5 | 31.0 cm | 12.20 in |
- For best fit, choose an insole that is 1.0 - 1.5 cm shorter than your removable shoe insert.
- If in-between sizes, round down to ensure the insole fits inside your shoe easily.

STEP STRONGER. MOVE FASTER. LAST LONGER.
CARBON FIBER CORE
Propels you forward with explosive energy return
RIGID ARCH SUPPORT
Stabilizes your stride and improves power transfer
PAIN RELIEF
Reduces foot fatigue, heel pain, and overuse injuries
FAQs
What size should I choose?
What size should I choose?
We recommend ordering your regular shoe size.
Will they work for flat feet or high arches?
Will they work for flat feet or high arches?
Yes. ExtraBoost™ supports all arch types with a flexible yet firm core.
Can I wash them?
Can I wash them?
They can be wiped clean with a damp cloth. Do not soak or machine wash.
Will I really feel a difference?
Will I really feel a difference?
Yes, more than 90% of users notice improved comfort, energy, and support from the first use. And if you don’t? You’re covered with our 30-day money-back guarantee.
Will I really feel a difference?
Will I really feel a difference?
Yes, more than 90% of users notice improved comfort, energy, and support from the first use. And if you don’t? You’re covered with our 30-day money-back guarantee.
Are they suitable for everyday wear?
Are they suitable for everyday wear?
They’re designed for performance, but you can use them daily for extra support.
The Powerful Benefits of Carbon Fiber Insoles
What Our Customers Are Saying About Their Carbon Fiber Insoles
91%
Reported a reduction in foot pain and discomfort after switching to carbon fiber insoles.
89%
felt increased propulsion, allowing them to run faster with less effort.
87%
experienced better ball control and stability, thanks to enhanced foot support.
82%
Reported fewer injuries, as the insoles absorbed impact and provided better shock distribution.
According to a survey completed by customers after 30 days of using the product