X-Strong&reg; 13.3 Inch Waterproof Sleeve Case Bag for Macbook Air / Pro Laptop Notebook (Black) Suitable for most popular 13.3 inch MacBooks / netbooks / laptops / notebooks; may not snugly fit all computers due to variations in the sizes of different models Zippers design, easy to use Material: Environmental protection waterproof material Slim and lightweight; does not bulk your laptop up and can easily slide into your briefcase, backpack, or other bag Size:12.99 x 8.58 x 0.78 inch, outer: 13.38 x 9.25 x 0.98 inch