Perfect backpack for all you butterfly lovers. This beautiful bag is made from spun polyester and weights 1.3 lbs, just enough to be light, strong and long-lasting. Grab it, stow it, throw it onto the seat next to you, this backpack can take it, and so will you, wherever you go! A total of 4 compartments - 1 main zip pocket, 1 front pocket, bottle pocket on the side and inside compartment for a laptop or tablet100% polyester. Lightweight and waterproof. Adjustable shoulder straps. Custom name tag sewn inside. Size variance +/- 0.5".