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