Teton TrailRunner 2.0 2 Liter Hydration Pack - The TrailRunner 2.0 lets you carry fluids without extra bulk. This ventilated hydration pack has an adjustable fit to eliminate chafing, room for essentials and an included 70 Ounce/ 2 Liter bladder. It features a deep exterior front pocket for snacks and wallet with a bungee to secure your items. This minimalist pack is adjustable at the waist and shoulder to fit men and women comfortably. The wide mesh straps and chest shock absorber reduce bounce. The included FDA-compliant food grade bladder is constructed with triple-heat sealed edges and a 2in opening for easy fill and cleaning, a heavy duty kink-free sip tube, and a cushioned bite valve with twist-lock to prevent leaks. Features 70 Ounce/2 Liter bladder Low-profile pack design Ripstop outer construction Deep outer mesh pocket with compression bungee system and reflective safety trim Drip hole on broom of pack Insulated mesh back panel Wide ergonomic mesh shoulder straps Stay-put straps include Safety whistle Includes waist belt that is expandable up to 49.5in