Felt is an under appreciated material. It doesn’t usually get mentioned along with the likes of leather or canvas, but it’s actually really nice in computer cases and sleeves. Take Pack & Smooch’s Laptop Sleeve “Hampshire” (€64/~$86). Made of wool felt that’s 3mm thick, these sleeves look great and are available in sizes to fit Apple’s entire laptop lineup.
In addition to the main slot for your MacBook, there’s an extra pocket for thin accessories such as cables or a notepad. A pair of snaps holds the whole thing shut, and there’s a vegetable tanned leather grip at the bottom; it’s a nice touch if you’re carrying this sleeve around without a bag. You have a choice of either grey or anthracite felt, either of which can be paired with light brown or dark brown leather.