''- 100% waterproof - All seams are electronically heat welded - Made from waterproof and durable PVC Tarpaulin - Watertight roll closure with quick release buckles - UV Coated outer material cleans easily and prevents slipping or marking - Securely mounts using patented RIGG STRAP® system - RIGG STRAP® can also be used as a separate tie down system - Padded back panel is sectionalized to allow for better airflow - Back panel opens to conceals backpack straps when used as a tail pack - Dual quick release closure either over the top or down the sides -Purge valve makes for compression ease - Inner sleeve to hold most folders; notebooks; tablets and up to 15" laptops - Inner loops for attaching smaller items for quick access - Front MOLLE panel includes a clear waterproof document pocket - Integrated external pocket to hold an optional hydration bladder or simular - Side bottle pocket large enough to hold 30 oz bottles (bottles not included) - Side MOLLE panel to add other optional accessories - Reflective webbing for enhanced visibility - Backpack straps are adjustable and padded for comfort - Dimensions approx.: 12.5" (31.8cm) long x 7" (17.8cm) wide x 21.5" (54.6cm) high - Capacity approx. 30 liters