The Rainier 25 Waterproof Backpack protects your laptop and other valuables by sealing out the wet with ultrasonically welded seams, waterproof zipper, and a roll-top closure. Proven tough, this pack can be trusted from bucketing backcountry adventure to pouring city commutes. With ergonomic, adjustable shoulder and sternum straps as well as a padded airflow back panel, this pack has your back in the comfort department.