The TETON Sports Oasis 1200 is the perfect hydration pack for long day trips in the back country, mountain biking, or even snowshoeing. There’s no limit to the activities you can use this pack for. This is the largest of all the hydration packs offered by TETON Sports. It is fully adjustable at your shoulder, chest, and waist. Includes features normally seen on more expensive packs such as custom tapered ergonomic shoulder straps, and mesh internal organizer. A quick-stash pouch, and waist belt pocket offer easy access to essentials. If you wander into rain, the built-in rainfly will keep your pack and gear dry. This athletic cut pack is super comfortable with a thick air mesh back panel with half-inch (1.3cm) foam padding designed to cinch in tightly to minimize bounce. The shoulder straps are comfort-taped mesh with a notched foam stabilizer. Included with your purchase is a 3-liter hydration bladder with a wide-mouth opening for easy fill and cleaning—slider then quickly seals the bladder when slid across the length of the opening. You will want to wash the bladder before your first use—then let your bladder dry out completely before reassembling it. Once it is dry, be sure to tighten the hose at the base of the bladder—the O-ring gasket needs to sit down into the receiver so it can seal properly—this will prevent leaking. Also includes a lightweight, durable, kink-free sip tube and push-lock cushioned bite valve. TETON Hydration Backpacks, like all TETON Sports products, come with our Limited Lifetime Warranty.