Quick Stow Flask 355mlmlStash in a running vest, wait belt or run with it in your hand. The bite valve seals after each sip and the bottle collapses as it empties, saving on both weight and storage. Features:Bite valve self-seals after each drink, eliminating annoying dripsEmpty flask collapses and folds ultra-compact to fit in most pocketsAll parts top-rack dishwasher safeVolume indicators in ounces and milliliters for tracking hydration and adding electrolytesHang flask upside down for easy drainage and drying355mlBuy Camelbak Bottles from Chain Reaction Cycles, the World's Largest Online Bike Store.