This 40L hiking backpack with dimensions 13.0""Lx7.9""Wx21.7""H is constructed from tear water resistant polyester, suitable for weekend getaways and outdoor activities. It has multi compartment storage for a 15.6 inch laptop and small items with a built in rain cover, plus breathable mesh padding and ergonomic design for comfortable wear. Matched with a safe 3L Tpu hydration bladder and easy access sliding top water bag for outdoor use.