SPECS: Dimensions: 35.5 x 19 x 19.5 cm / 14 x 7.5 x 7.7 in Back Panel: Padded Mesh BPA/BPS/BPF Free Weight: 300g/11oz Hydration Type: CRUX™ Reservoir with Standard Exit Port Torso Fit Range: 30-40cm/12-16 in Gear Capacity: 1.5L/90 cu in Hydration Capacity: 1.5L/50 fl oz Gear Range: Minimal STORAGE: 3 Exterior Pockets Large main pocket with enough room for hiking essentials and your 1.5L of water DESIGN & DETAILS: Features the brand-new Crux which delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks Reversible, double-duty design converts into an insulated reservoir sleeveUltralight and compressible materials Removable sternum strap for a custom fit Secure zippered pocket for essentials.