‎11.46 x 10.51 x 4.49 inches

100% Nylon Imported Professional Upgrade Design & Ergonomic: The hydration pack backpack is lightweight and breathable. Ventilated mesh padding is incorporated into the shoulder straps, waist straps, and back area, guaranteeing the comfort of the pack. This 3 L hydration backpack is capable of fulfilling your all-day-long hydration requirements. The hiking backpack for women features 2 reflective strips, which add to the enjoyment of the ride