This backpack is made from 51% recycled PET and 49% 600 D poly/canvas. Recycled PET is made from post-consumer plastic bottles and has been formed into a fabric that has a very similar texture to 600 D poly/canvas. By combining it with 600D poly/canvas, you get the benefit of an environmentally friendly recycled backpack with the same texture and durability of 600D poly/canvas. The backpack features an adjustable single shoulder strap that allows you to easily and quickly sling this bag over your shoulder and the main pocket of the bag has a zipper closure keeping your valuables secure. The front of the bag also has a smaller zippered pocket designed for loose items and a side mesh pocket. This bag allows you to prominently display your advertising message on the front of the small zippered pocket.