This Half Day Sleeve from Dell is a protective and quilted sleeve has scratch-resistant lining that protects the laptop from dust and minor bumps. It is ideal for stand-alone use or for stowing in a purse, backpack, gym bag or briefcase. It has a zipper-secured exterior pocket for organizing smaller items. The cotton-like material is durable and water resistant. When all you need is a laptop and a few essentials, the Dell Half Day 17.3-inch Sleeve offers lightweight protection for wherever your day takes you. This product has been tested and validated on Dell systems. It is supported by Dell Technical Support when used with a Dell system.