VanGoddy Bravo Red Trim Laptop Backpack w/Mouse and USB HUB for Lenovo Flex/ThinkPad/IdeaPad/Yoga/Legion 13&rdquo; - 15.6inch Tight nylon woven exterior with carbon fiber weave design 3 Exterior slip pocket ideal for quick access to desired accessories Two zippered compartments, one of which features a dedicated padded laptop compartment Mesh padded shoulder straps and back rest provide cool and comfortable wear Includes Wireless Optical Mouse and 3-Port USB HUB | Laptop compartment measures: 15.25" X 12" X 1.75inches