Nathan VaporZach 2.5 L Runnng Shirt making it Salmings most reactive

making it Salmings most reactive compound to date and an incredible update from the Speed7 version

The ACS-Technology allows very high speed to be combined with maximum springiness/elasticity in an ultralight rubber with outstanding control

HydroGuard - a breathable waterproof membrane that guarantees a dry and comfortable environment for your feet

Adjustable velcro headstrap included

Nathan VaporZach 2.5 L Runnng Shirt making it Salmings most reactiveFeatures & Benefits This soft flask hydration race vest was developed with the precise specifications of hard charging champion runner, Zach Miller. The lightweight, form fitting, and race ready hydration vest provides a unique and stable solution to wearing water an carrying other running essentials for people who want to push their limits in training and racing. Two 12oz ExoShot soft flasks, with extended strap tubes to easily sip fluid without