BSN Gym Bag BSN Nutrition gym bag can be used to carry many things. It is a handy peice of equipment. It can carry your food for the day, your laundry and your gym gear. Features - 47 x 27 x 24 cm size - Black and red with yellow details / BSN logo on both sides of bag. - Material - 420 denier ripstop nylon - Handles and detachable shoulder strap.