On 5" Performance Shorts (Mens) Black Mens Trail while the optimized 3D chassis

while the optimized 3D chassis gives you extra stability on longer

2:1 glucose to fructose ratio to aid carbohydrate uptake

with technical features designed specifically for the trail runner

Plan race-day strategy with GPS-based pace guidance for a selected course or distance

FF BLAST™ MAX cushioning works in harmony with encapsulated Rearfoot PureGEL™ to absorb impact and energise each stride

On 5" Performance Shorts (Mens) Black Mens Trail while the optimized 3D chassisOn's 5" Performance Shorts are built for training runs and racing, offering a lightweight, unlined fit with a secure waistband and minimal chafe. A simple, reliable short for road and track sessions. In Black.