The Prewitt Backpack (C090) is sized perfectly to hold all your everyday essentials for your life off the mountain. The 17-liter Prewitt Backpack (C090) features a 15 side-accessible laptop sleeve. an internal stash pocket. and an external water bottle pocket. Its lightweight at only 1lb 5oz. yet durable with ripstop body fabric and oxford boot fabric. Other features include a wraparound U-zip for easy access. stretch-mesh front stash. injection-molded shoulder straps for maximum comfort. perforated back panel to increase airflow. reflective patch with bike-light loop. and a side hydration port. The Prewitt Backpack (c090) is essential to keep you organized when on the go!