DK

Hawkes Lab — UC Santa Barbara

World's Fastest
Running Shoe

Variable-stiffness midsole pods designed to outperform conventional foam on energy return and metabolic cost.

Overview

Replaceing foam.

Developing air based soles to replace conventional foam, optimizing for peak performance athletes. Dyneema and TPU based architectures tested for tensile strength, hysteresis, and cyclic fatigue.

Drop Testing

The rig to run the test.

Drop test rig schematic

Rig schematic

Physical drop test apparatus

Physical apparatus

Custom drop-test rig measuring impact dynamics, energy return, and material deformation under repeatable conditions.

Results

Force vs. displacement.

Shoe placement

Placement configuration

Force vs displacement data

Prototype vs. foam baseline

On-Body Testing

Putting it on a runner.

Metabolic cost measured via TCCT protocol. VO2 as a direct proxy for energy efficiency across shoe conditions.

VO2 setup

Testing apparatus

VO2 results

VO2 TCCT — 6 mph