The Incase Envelope Sleeve’s design beautifully complements and protects the streamlined form of your MacBook. Created with a premium Cone Denim material that provides a classic vintage wash, the Envelope Sleeve in denim is produced by applying the same techniques that are used to create your favorite pair of jeans. The process includes pre-wash hand sanding, pumice stone wash, wet/dry treatments, and a finishing of hand sanding along the edges to create a classic worn-in look and feel. Incase Envelope Sleeve in Denim