The Bauer Premium backpack bag is constructed with tear-resistant polyester fabric and heavy duty PVC fabric backing plus a waterproof bottom. There is a large “U” shape opening that has MULTIFLO which is a two layer ventilation system, and with ventilation grommets on the sides it’ll be easy to get the hockey stink out of this bag. With the adjustable backpack straps this bag is easy for anyone to carry. Also two external skate pockets positioned for balance, two external, and one internal accessory pockets you won’t have a problem fitting all your equipment in the premium backpack bag.