NWT Topo Designs 20L Classic Daypack in Khaki & Black Eco-friendly & Sustainable water resistant materials. This is a durable backpack with the shell made of 1000D recycled nylon, and the inner made of 210D recycled nylon. It has two water bottle sleeves, a front pocket, a hidden side pocket on the back, and a large central compartment that can hold most 15” laptops. Padded shoulder straps keep it comfortable on long hauls, and the heavy duty YKK zippers make getting into and out of easy.