Highest-quality vegetable tanned full-grain Scandinavian leather Premium 100% natural wool felt from Germany Minimalist and timeless Swedish design sets it apart Easy to charge the MacBook right in the sleeve Our signature MacBook sleeve is made from the best vegetable tanned leather, using an interior of the finest 100% natural wool felt. Our sleeves comes in Black and cognac brown leather colors. Using a Woolnut MacBook cover is not only a great way to protect your device, but also compliments it with a fantastic new look.