Padded adjustable shoulder straps. Adjustable waist and chest straps. Ergonomic breathable padded mesh back panel. Hydration bladder included. External helmet stow pocket. Trekking pole attachment points. Compression straps. Elasticated mesh side pockets. Zippered side pocket. Internal mesh pocket. Reflective accents. Back light attachment loop. Grab handle. Matching styles QX520 and QX530.