Mujio (www.mujjo.com) has released the MacBook Pro Retina 13-inch Sleeve. The brown case sells for approximately US$76.

This snug tailored, hand-crafted sleeve combines minimalism with long lasting elegant accents, according to the folks at Muijo. The leather flap, with one button on the right, provides a simple closure and keeps your device secure. The snap and rivets are lined to keep your MacBook from touching anything but soft, thick wool felt. The smart storage compartment allows you to store documents, earplugs and more.

The sleeve is a combination of 100% wool felt and high quality leather. Wool felt is a sustainable and renewable material, offering strength while remaining a soft touch, according to Mujio. The flap is made out of 100% vegetable-tanned leather and is hand-dyed using environmentally friendly dyes. The felt can be cleaned; a special treatment provides anti-peeling properties and makes the sleeve water repellent.