Heel Pad XC

The Joint Guard

Heel Pad XC

94.7% shock absorption. Protects ankles, knees, and hips on every heel strike.
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The problem we engineered against

Your Joints Absorb More Than You Think

Every heel strike sends a shockwave up through the ankle, knee, and hip. Thousands of impacts per match. Foam cushioning flattens mid-session — delivering the least protection when fatigue is highest. Cumulative joint load is the real cause of nagging pain, not bad technique.

Our solution

100% Sorbothane. Accepted by the APMA. Proven Over 1 Million Steps.

Sorbothane is a visco-elastic polymer — accepted by the American Podiatric Medical Association and used in precision engineering applications worldwide, including NASA equipment protection. Unlike natural rubber (which returns energy to the system and causes high rebound) or butyl rubber (which reduces impact but creates linear force), Sorbothane converts impact energy into harmless heat through high hysteresis.
The Balance Correction Map demonstrates measurable pressure redistribution after wearing Heel Pad XC: weight shifts to the ball of the foot and the centre of the heel, correcting overpronation and reducing pressure concentration at high-stress zones.

Illustration of a tennis player's leg with highlighted knee area on a white background

The Injury

Plantar Fasciitis

Plantar fasciitis occurs when repetitive heel strike impact overloads the plantar fascia — the thick band of tissue connecting your heel bone to your toes. Each hard landing sends a shock wave through the fascia that it can't fully absorb. Over time, micro-tears develop at the heel attachment point. The fascia never fully recovers between sessions, and inflammation becomes chronic.

The Technology

Sorbothane®

Most cushioning materials only change how an impact feels, not how much of it actually reaches your body. Sorbothane works differently: its visco-elastic structure absorbs the impact energy itself — whether it's vibration travelling up a racket into your arm, or shock travelling up your leg with every heel strike — and converts it to heat instead of passing it through.

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How it works

Product Highlight

Heel Pad XC

Heel Pad XC

1

High hysteresis

Removes more impact energy per cycle than rubber, butyl, or foam, converting it to heat, not rebound.

2

Gradual deceleration

Spreads deceleration over a longer timeframe, reducing peak load on every heel strike. Superior to foam for joint protection.

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Meet our ambassadors

Trusted by pro athletes around the world.

Sky Kim

Sky Kim

Founder, Road to Pro

"

My knees ended my career. I built the Heel Pad XC so that yours don't have to end yours

"

Real Results

Loved by athletes who tried it

4.6 out of 5 · 42 verified reviews

“These simple inserts vastly improve my orthotic inserts and increase the performance of my tennis shoes.”

liz T. ✓ Verified buyer

“I've been giving these as gifts because I love sharing a product that genuinely helps with my feet.”

Erica W. ✓ Verified buyer

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