17" X 15" X 6"(Height X Width X Length), Weight: 0.6(lb) High-Quality Smooth Zipper, Durable Nylon, Water-resistant Fabric. The fabric is thicker, stronger, smooth and water-resistant. All of things in the bag are protected well. The strap is wider and strong enough. You will not feel any uncomfortable when wearing. It is lightweight and fashionable. Suitable for boys and girls. It's perfect to be a Training Gymsack or a Travel Casual Daypack in Daily Life. It has large room to hold all of the things that you want to carry.