CAMELBAK Quickstow Frame Bag with 2L Reservoir,

[Quick stow cap with one-touch opening and closing valve] Allows for easy access around the camp. Hypalon reinforced handle. Easy to fold: The Empy reservoir folds up into an ultra-compact fold that fits in most pockets. Made from materials that are 100% BPA, BPS, and BPF free. Big Bite Valve: Delivers 20% more water per sip.