Although this sleeve fits up to 13-inch laptops, it also keeps your Microsoft Surface snug while on the go. The Crater Sleeve protects your Surface while also keeping it cool: Its high-density foam with crater holes lets it ventilate so your device doesn't overheat. A zipper enclosure makes sure it won't slide out, the crater holes keep the whole thing lightweight and it's TSA-friendly, so you don't have to remove your Surface from the case at the airport. Available in Mesh Black/Foam Gunmetal/Texture Grey, Mesh Black/Foam Gunmetal/Ballistic Nylon Black and Mesh Black/Foam Gunmetal/Ballistic Nylon Algae Green. $20.72

Timbuk2 Crater Laptop Sleeve