Backpack stands out with more humane design for easy and convenient use.This backpack is made of high quality tear and water resistant nylon fabric,heavy duty metal zippers and enhanced by bar-tacks at major stress points provide long-lasting durability against daily activities.The extra strength provided by the double-layer bottom piece makes it possible to carry more stuff.It weighs only 1 pounds, can easily fold into its own pocket for storage,and unfold it when you need it. Perfect all-purpose carrying bag for traveling , easily fit in the luggage. Breathable mesh shoulder straps with plentiful sponge padding help relieve the stress from your shoulder.