Gravel-Oriented, Vest-Style Fit - Accessible, comfortable design with large zippered front pockets for snacks and tech, and easy-to-use slots for sliding in glasses Reservoir Included - Packs come with an included 1.5 L hydration reservoir and sternum strap magnetic bite valve attachment Dual adjustable/removable chest straps for customized stability Lightweight magnet on chest strap for easy access to reservoir hose Vertical zippered harness pockets for snacks or phone with foam at base for extra comfort Item Dimensions: 15H x 15.7W x 5.1D in; Item Weight: 1.37lb