Material: 100% Polyester. Perfect for active days. Volume: 40LTwo large compartments with zippers.Adjustable shoulder straps with quilted, soft mesh fabric.Two open side pockets.Soft, quilted mesh fabric at the back.Hike Backpack 40L hiking backpack by Swedemount. Roomy, lightweight backpack with adjustable bands for best comfort. Multiple, practical compartments with zipper. Hardwearing material perfect for hiking and everyday life.