Large Backpack 100 percent Polyester 44 Height x 35 Width x 20.5 Depth cm 0.65kg Weight x 27L Volume Water repellent. This backpack is made of 100% Polyester and is water repellent. It measures 44cm in height, 35cm in width, and 20.5cm in depth. The backpack weighs 0.65kg and has a volume of 27L.