6 Reasons Why Athletes Are Switching To This Insole To Boost Their Performance

Note: Read this BEFORE you struggle with another pair of Insoles

Chris Kortfist Verified

Performance Specialist

Apr. 19, 2025

Title

1. Spring-Loaded Energy Return

Most insoles serve no purpose. They cushion, but they don’t give anything back. That’s wasted energy with every step you take. Knetx changes that. Using aerospace-grade carbon fiber, the same material found in race cars and fighter jets.

When you run, or jump, the carbon fiber plate flexes just enough to cushion the impact, then snaps back to help propel you forward. The result? Faster runs, higher jumps, and softer landings. It’s like having springs under your feet.

2. They Support Recovery And Prevent Re-Injury

Knetx insoles provide structured support that reduces strain during recovery. By limiting dangerous movements like overextension or hyperflexion, they help you move with more stability and less risk of setback.

In an independent 30-day trial, 40 Knetx users experienced 41% less ankle and foot injuries, 21% fewer leg injuries, faster recoveries and fewer setbacks, longer foot endurance.

3. Shock Absorption, And Joint Protection

Hard landings and constant pounding can take a toll on your body. That’s why Knetx insoles are built with a stiff yet still flexible carbon fiber plate, and padded with our special PA padding, that actually helps absorb shock when landing.

It spreads out impact across the carbon fiber plate, reducing stress on your joints. The result? Smoother landings, better protection, and fewer aches after every session.

4. Only Insole Makers With A Flex Fit System

Every sport demands something different from your footwear, and Knetx adapts to that. When you order, you’ll choose your sport and shoe type so the insoles are tailored to your specific shoes. From cleats to running shoes, to court sports, Knetx ensures a perfect fit that ensures maximum performance output.

5. Real world results, Not Placebo

In a double-blind, PhD-led study, 37 athletes used Knetx, and they experienced 11% more explosiveness, 9% faster accelerations, and a 12% increase in peak power output.

Knetx isn't placebo. It's biomechanics built for power and proven in performance. Engineered to absorb shock, and return energy with every movement.

It's not just foam. It's not gel. It's real tech that helps reduce strain, and improve speed.

6. Our Performance Promise To Our Costumers

97% of customers say they feel the difference right away. And over 95% of customers who have bought Knetx insoles have had the option to return them within 2 months. And guess what? They didn't. That's because our insoles are built so that you can feel it. More energy return, more explosiveness, more shock absorption.

And if you're one of the few who says, "I don't feel the difference," return them. Simple as that. But chances are, you'll wonder how you ever played without them.