Designer Holger Gräf and Daniel Lantz of Gräf & Lantz have announced an exclusive color collection of MacBook Pro and MacBook Air cases hitting Apple stores across the USA and Canada in time for the 2013 holiday gift buying season.

Gräf & Lantz ( created versions of their best-selling laptop sleeves for the 11- and 13-inch MacBook Air and 13- and 15-inch MacBook Pro with Retina display (US$59.95). Crafted of Merino wool felt and leather, they’re inspired by the intersection of opposites; the most advanced technology protected by the world’s oldest textile.