Camelbak Circuit 50oz Hydration Pack-Black Liner Lock but always check your local

but always check your local laws

and how is this different from the C10PBK

Impessive light output 670 LED lumen

1 - 6" x 8" Bag

Camelbak Circuit 50oz Hydration Pack-Black Liner Lock but always check your localThe Circuit is a perfect versatile, lightweight and low profile solution for long distance running. Features 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