#1 Top Recommended Backpack - Lightweight Drawsting Backpack - Best for Sports, Gym, Travel, Hiking&School 100% durable lightweight nylon Drawstring backpack made waterproof material,not easy to scratch or tear. Quality Brand zipper YKK This gym backpack has plenty room for carrying all your workout gear stuff. Adjustable,removable shoulder strap with padded air-mesh shoulder pad for added strength and reliablity Provides two exterior side mesh pockets work well for holding water bottles, or storing other items within easy reach. Backpack for gym, sports, yoga, training, running, dance, swimming, travel and etc with 100% LIFETIME GUARANTEE