Features of the Gregory Women's Amasa 14L 3D Hydration Pack The hipbelt can be shifted vertically to ride Higher or lower on your back to provide extremely stable, no-bounce Performance This quick customization of the stabilizer belt allows you to match your Fit preference to your indiviDual riding style and trail grade A foam-matrix backpanel structure encapsulated breathable mesh to provide air flow and moisture evaporation, in order to reduce energy expenditure Shift RS suspension with adjustable RS (ride stability) hipbelt stabilization system Magnetic sternum strap allows for one handed magnetic buckling of strap and integrated magnetic linkage for the DryLock bite valve Crash pad protection pocket with protective foam for valuables you want protected from impact and weather exposure Bike-specific organization with a dedicated pockets and sleeves for tire and shock pumps, spAre tubes, energy bars, etc Removable zippered tool pouch with Dual zippered pockets Sunglass quickstow system on shoulder harness allows a quick, secure and scratch-free way to store your shades on the go