Men's Endorphin Speed 4 Belts Materials: 95% Neoprene

Materials: 95% Neoprene

Naturally temperature-regulating

Soft silicone mouth piece to minimize jaw fatigue

Three white lighting levels: MAX BURN TIME

Men's Endorphin Speed 4 Belts Materials: 95% NeopreneThe Endorphin Speed 4 is made for everyday training and speed training. Features: Smooth SPEEDROLL technology for effortless speed, smooth turnover and propulsive forward motion PWRRUN PB foam is a true unicorn, offering the best combination of cushioning and energy return of any foam on the market Re engineered winged nylon plate provides reinforcement while maintaining flexibility Winged Nylon Plate Support: Neutral Offset: 8mm Weight: 8. 2oz