VaporAir 4 8L Hydration Pack (Electric Blue/Ribbon Red) Size:S/M With an always speedy Zoom

With an always speedy Zoom Air engine on top of softer

83% Polyester/17% Spandex moisture management fabric

Whether you're on the track or training hard

and the fit is cozy and comfortable

VaporAir 4 8L Hydration Pack (Electric Blue/Ribbon Red) Size:S/M With an always speedy ZoomBUILT FOR LONG MILES The VaporAir was inspired by trail runners who spend hours on the movewhere comfort, stability, and adaptability matter more with every mile. As conditions change, gear shifts, and layers come on or off, this vest is designed to adjust with you, not against you. ON THE RUN ADJUSTABILITY Internal wrap panel with exposed front toggles lets you micro adjust fit mid run for a secure, no bounce feel. BREATHABLE + FAST DRYING 3D mesh