Optygen Hydration designed to increase stored energy

designed to increase stored energy to deliver a higher amount of total energy returned

This shoe is perfect for runners who want a versatile daily trainer that feels light and nimble

and powerful energy transfer

Featuring Sensifit™ construction for precise

Stowable waterproof hood (3-layer waterproof/breathable 100% recycled nylon ripstop)​

Optygen Hydration designed to increase stored energyCLINICALLY SHOWN TO INCREASE PERFORMANCE Optygen is a legal, safe and stimulant free formula that's engineered to improve oxygen utilization, reduce lactic acid and allow the body to adapt to high levels of physical stress. Increases oxygen utilization & VO2 max Improves lactate threshold & reduces lactic acid Enhances the body's ability to adapt to high levels of physical stress