Endorphin Running Belt Speed Majority bio-based fiber

Majority bio-based fiber

Next-generation superfoam cushioning with unheard of levels of energy return

The GT-2000™ 13 ASICS TRACK CLUB shoe is a lightweight

and fade-resistant (excluding neons)

Reverse coil zipper with chin guard

Endorphin Running Belt Speed Majority bio-based fiberThe Endorphin Running Belt was made to be your ultimate running companion. Light, secure, capable, and built to exceed expectations at every distance from 5k to 100 miles. Lightweight & Comfortable: Crafted from breathable, stretchable materials that conform to your body for a snug, bounce free fit. Adjustable Fit: An easily customizable waistband ensures a secure grip without pinching or digging, so you can move with confidence. Ample Storage: