Material: 100% Polyester Your new go-to. Capacity: 20 LTechnology: Air flowU-shaped main compartment.Main compartment with multiple zippers.Compartment at the bottom with two openings.Two outer compartments.Adjustable shoulder straps with sternum strap.Smart fastener on the outside.Hike backpack 20 L backpack by Swedemount. Roomy, lightweight backpack with adjustable bands. Multiple, practical compartments with zipper. Hardwearing material perfect for hiking and everyday life.