Ounce for ounce, Dyneema composite fabric is one of the toughest. Also super light and water resistant. That makes the 40-liter Patrol Pack from Best Made Co. a durable companion for all your wanderings. It features a convenient front-loading design for easy lay flat access as well as a built-in zippered laptop sleeve, Aquaguard YKK zippers all around and rugged, seatbelt webbing straps.