Osprey Synchro 5 hydration backpack, 5L with 2.5L water bladder

A light hydration backpack for hiking or biking. Total volume is 5L and equipped with an Osprey standard 2.5L water bladder. Slate blue ripstop outer with yellow nylon lining. Nice pockets external and external, with light suspension and waist strap. Top zip compartment, stash pocket and helmet clip in contrast yellow. I upgraded to a larger model and so this one is unused.