*15.5 Oz.Made from smooth and soft nylon material. *Lightweight and waterproof. Simple and fashionable backpack for outdoor traveling. *Black stitch lines on the surface of backpacks. *Perfect for holding a laptop and many books. *Padded back panel and adjustable shoulder straps for extra comfort and easy carrying. *Designer Tip: To ensure the highest quality print, please note that this product's recommended uploaded image size in pixels (W x H): Front Piece:1840 x 2512 or higher Top Zipper Gusset:4112 x 1488 or higher Left gusset:959 x 1146 or higher Right Gusset:959 x 1146 or higher