The Circuit is a perfect versatile, lightweight and low-profile solution for long-distance running.
KEY PACK FEATURES:External fill, sweat-proof phone pocket, stretch overflow storage, reflectivity, fits 30"-46" chest.
DESIGNED TO CARRY:Water bottle, extra layer, nutrition, phone, keys.
ANTIDOTE® RESERVOIR FEATURES:1/4 turn - easy open/close cap, lightweight fillport, dryer arms, center baffling and low-profile design, patented Big Bite™ Valve, HydroGuard™ technology, PureFlow™ tube, easy-to-clean wide-mouth opening
CamelBak® Got Your Bak™ Guarantee: If we built it, we'll Bak it™ with our lifetime guarantee.