With a spill-proof system to prevent any leakages in your bag, and the double-wall insulation keeping your drink cooler for longer than a standard water bottle.Double-Wall foam insulation - Keeps your drinks cooler for longerSelf-sealing Jet Valve - For a spill-proof bottle making it easier to drink on the movePositive lockout system making the bottle leakproofWide mouth opening - Helps cleaningTruTaste polypropylene with HydroGuard - A construction keeps you tasting water instead of the bottleRemovable nozzle - For easy cleaning100% BPA,BPS,BPF-FreeCapacity: 620mlFits into most bike bottle cagesCamelBak Got Your Bak Guarantee