Pacific Outdoor Equipment Dry Cylinder 35 Bag Volume 35 (L) Durable, abrasion resistant 210D Nylon, easy fastening Duraflex buckles with shoulder carrying strap Roll top waterproof design to keep all your items dry and secure Round dry cylinder with clear side view window for people who want to keep things dry and see what's inside Stiffing strip creates a hard edge with the fabric during the roll down process to strengthen the waterproof design