100% Waterproof & Extremely Lightweight. All the Comfort of a High-End Backpack. Aqua-Quest Backpacks are The Best * Durable & Abrasion Resistant Oxford 70-D RipStop Nylon Fabric & TPU Waterproof Coating. * Air Mesh Rear Panel & Contoured Shoulder Straps for Maximum Comfort. Fully Adjustable to Fit Virtually Anyone * Additional Features: Collapsible to Convenient Carrying Pouch with Handle. Shoulder Straps Have Extra Plastic D-Rings for Accessory Attachment * Dimensions (Approx): Capacity 1200 cu. in. Weight: 1.1 lbs. Laid Flat: 24 X 13 in. Closed: 20 X 13 in.