Running Foam: EVA vs TPU vs PEBA

Running Foam: EVA vs TPU vs PEBA

By Nora Kim · October 2, 2026

The Midsole Makes the Shoe

Midsole foam determines 80% of a running shoe feel. Three major types dominate the market.

EVA Foam

Traditional, lightweight, affordable. Returns 55-65% of impact energy. Compresses after 300-500 miles. Good for daily training at moderate paces.

TPU Foam

Better energy return (70-75%), lasts 600-800 miles. Heavier but more responsive. Cost-effective over time despite higher upfront cost.

PEBA Foam

State of the art. Returns 85-87% energy, lightest foam available. Improves running economy 4-6%. Expensive, 200-300 mile lifespan. Race day choice.

Choosing Your Foam

Daily training: EVA or TPU
Long runs: TPU for sustained cushioning
Race day: PEBA for maximum speed
Recovery: EVA or TPU with high stack