The extra lightweight hydration backpack sits firmly and comfortably on your back on ambitious rides without covering the jersey pockets. It also offers space for provisions and gear. 

Specifications

Close-to-body vest-pack construction
HYDRATION BLADDER 1,5 included
2x NUTRITION COMPARTMENT for bars or 150 ml liquid/gel (each)
Chest strap pocket for gear you need to have quick access to while riding