BUILT Neoprene Twist Top Sleeve for 13-inch MacBook Air and 14-inch Ultrabook, Mini Dot Navy BUILT Neoprene Twist Top Sleeve for 13-inch MacBook Air and 14-inch Ultrabook, Mini Dot Navy Made of durable Neoprene (the wetsuit material) backed by a plush inner lining designed to safeguard the contents Zipper-free opening and bottom grips ensure easy insertion and removal of laptop Unique design secures laptop in place so it wont fall out Measures 12-6/10-inches by 9-8/10-inches by 8/10-inch