Camelbak hydrobak hydration pack combat dehydration with camelbak's hydrobak hydration pack. Camelbak's wonderfully minimalist bike pack will hold their 1.5l antidote reservoir in a narrow profile, which ensures that you maintain maximum range of motion. This hydrobak hydration pack is ultra light, coming with one small front pocket and a reflective strip for increased visibility in early mornings and late evenings.features antidote resovoir features1 4 turn easy open close cap, lightweight fillport, centre baffling and low profile design, patented big bite valve, hydroguard technology, pureflow tube, easy to clean wide mouth openingkey pack features external fill, essentials pocket, reflective, short torso sits above jersey pockets designed to carry multi tool or wallet, keys camelbak got your bak lifetime guarantee if we build it, we'll bak it specificationsmaterials lightweight meshhydration capacity 50oz 1.5l total capacity n a 1.5l reservoir total weight pack and reservoir 0.35lbs 0.16kg dimensions 12.625 x 9.25 x 3.5 32 x 23 x 9cm torso length 11 28cm empty reservoir dimensions air mesh full reservoir dimensions n a buy camelbak accessories from chain reaction cycles, the world's largest online bike store.