Oakley Men's Blade Dry 35 100% Other Fibers Imported Hand Wash 3" high 20" wide Waterproof fabric and seam-sealed construction, large wide-mouth roll-top opening, percent pocket for quick-access storage, quick-dry padded back panel, padded shoulder straps with sternum strap, 35 Backpacks 600 denier nail head polyester lining, 200 denier polyester