1. Overall dimensions :35.5 x 26.3 x 3cm (14 x 10.4 x 1.2 inches). Compatible with MacBook Air 13 "A1369 A1466 2010-2017, compatible with MacBook Pro 13" A1425 A1502 A1278 2008-2015; Compatible with Surface Book 3/2/1 13.5 and Surface Laptop 4/3/2/1 13.5; Compatible with Dell Latitude 14 and Inspiron 13/14; Compatible with HP Elitebook 13.3/Spectre X360 13.3/Envy 13/Stream 13/Stream 14/Pavilion 14; Compatible with Lenovo ThinkPad X1 Carbon2.4 Layers of protection: Durable sleeve with built-in foam pads to protect your tablet/laptop from dust, scratches, drops and shocks. Slim, lightweight and easy to carry or fit into a briefcase, backpack or suitcase.3. External pocket storage and smooth zipper - There are three extra pockets on the front with enough space for cell phone, charger, mouse, cable, power bank, external hard drive, pen, etc. The top-loading zipper on the sleeve slides smoothly, allowing easy access to your laptop.4. Stretchable handle: The PU handle allows the bag to switch between a briefcase and a laptop sleeve. Hide the handle, it's a laptop sleeve, and you can put it in your backpack. With the handle open, it becomes a laptop briefcase.