Features Zipper closure 17 centimeters high 28 centimeters wide Padded sleeve fits 3L hydration system or 15-inch laptop S-Curve shoulder straps Tricot lined tablet pocket Quick access loft pocket for small accessories Front zippered insulated pocket Description With a distinctive cylindrical design and offset leather logo patch, the JanSport Watchtower is perfect for the person who wants to try something different without diverging from tried-and-true, top-quality construction. Zippered front flap pockets securely store essentials, side compression straps minimize bouncing, a padded internal sleeve holds a laptop or hydration system, and a chest strap helps you balance a heavy load. Whether intended for use on the trail, as a daypack, or as a book bag, the Watchtower will answer to your needs.