Mazama's AXE bladder features a wide mouth, leak proof top fill port and made-in-the USA, taste-free bladder film. The low profile, top fill closure opens wide for easy filling and cleaning and positively seals every time with a quick flip of the twin locking levers. The full-length handle provides a sturdy handhold during fill-up and helps you load the reservoir into a full pack. AXE includes our high flow, original DesChutes bite valve with a one-hand push button shut off. Super magnets on the bite valve and a strap-mounted magnet retainer provide easy, but secure bite valve access. A mid-line quick connect lets you load your reservoir while leaving the drink tube connected to your pack. AXE reservoirs are designed to fit popular hiking and biking pack models. Check your bladder compartment size to determine if the 2 L (70 oz) or 3 L (100 oz) model is your best choice.