Capacity 70 oz (2.0 L) Durable and comfortable, CamelBak's ThermoBak® 2L will be your most relied on tool in the field. In fact, this system has proven itself with every branch of the US Military. Offering 70 oz.(2L) of clean water on command. SternumStrap™ for added stability Closed cell insulation and neoprene tube cover keeps water cool or warm for hours Includes HydroLink Modular Connection System with positive shut-off HydroLock™ Exterior fillport with ergonomic handle for filling on the g