This quality backpack is manufactured from Cationic Dyed Polyester (also called polyester linen type filament) which is softer and more comfortable fabric better than normal polyester and features anti-static electricity. It has wide padded adjustable straps and padded back feels more comfortable when you carry the bag other features includes the large zipped front pouch and two side pockets for drinking bottles. Max volume capacity is 17-18 litres.