bonsalay 13.3 Inch MacBook Felt Sleeve for MacBook Air, Macbook Pro Retina and Other Ultrabooks Netbooks, with Card Slot and Accessory Pouch - Gray Synthetic leather with button closure for best security; High-quality gray felt outside and soft flannel inside Practical design and exquisite workmanship; Environmentally friendly material. Sustainable, renewable and biodegradable Internal dimensions: 12.9" x 9"; External dimensions: 13.7" x 9.8". Fit for Apple 13.3 Inch MacBook Pro Retina & Macbook Air and most 11-Inch Ultrabook Laptop Macbook One main compartment for laptop and two back pockets lined with flannel for cellphone, earphones, wallet, etc.; Additional: small felt bag for power adapter or mouse Lining material is mold-proof, wear-resisting and does not scratch the computer; Felt absorbs shock and protects your device at all times