Water-resistant UA Storm technology keeps your essentials dry. Padded airmesh on shoulder straps & back panel provides ultimate comfort & breathability. Bladder compatible storage for quick & easy hydration. Compression webbing system allows you to adjust size of bag to bring the weight closer to your body. Large zippered main compartment & padded valuables pocket. Adjustable waistbelt strap & sternum strap closure for added support & a more secure carry. Dimensions When Full: 4.3" W x 17.5 H x 10" L. Volume: 13 L. 100% Polyester. Colour: grey