reverse horse culatta macbook sleevethe minimal macbook sleeve has been cut from a full grain 3. 2mm vegetable tanned, washed and barrel tumbled tuscan horse culatta leather with a rotten corpse mac black dye treatment. culatta is a special cut combined of the rear just above the cordovan, the belly middles and the hind shanks, offering a dense structure, tight grain and medium to firm temper. vegetable tanned leather is an ancient artisanal process that hinges on the delicate balance