The backpack is made by highly rip and water resistant 420D nylon fabric, provide strengthen and long-lasting performance with minimal weight(220G). Unfold size is 13 3/8" L X 10 1/4" H X 5 1/2" W, Fold size is about 7 7/8" L X 7 7/8" W X 3/4" H. This backpack with a handle and backpack, has two side pockets for water bottle and two zipper in the front side for small things. A true space saver. Stuff the bag into its own pocket for storage --- no extra fees, and unzip it when you reach your destination. Avoid overweight charges, simply unfold from your luggage and use it as a carry on for your excess baggage. It is a good choice for outdoor, travel, shopping etc. Great to promote your logo.