Rangland Extra Large 4L Hydration Bladder With a true 4-liter (135 oz) capacity, this hydration bladder holds significantly more than standard 2L and even “large” 3L models — giving you the water supply you need for extended time outdoors. Built from heavy-gauge PEVA with reinforced seams, this bladder is made to handle rough terrain and heavy use without leaking or tearing. The oversized screw cap makes it easy to fill from any water source (including with ice) and allows full access to the interior for thorough cleaning. Volume markings on the bladder help you keep track of how much water you have left, so you're never caught off guard. The quick-connect hose clicks into place securely and detaches instantly with a push-button release, with an internal auto-shutoff valve that prevents leaks when the hose is disconnected. A one-handed bite valve delivers smooth, controlled flow and includes a tethered flip cap that keeps it clean when not in use. Product Specs Capacity: 4L (135 ounces) Dimensions: 460 x 265 x 24.6 mm Material: PEVA bladder, FDA-grade PVC hose One-Handed Use: Push-turn ON/OFF valve Quick Release: Easy hose attachment and removal with click-and-lock system Wide-mouth screw cap for easy filling and cleaning Water level markings at half liter intervals Tethered dust cap Leakproof