BUILT Neoprene Sleeve for 12-13-inch Laptop, Black BUILT Neoprene Sleeve for 12-13-inch Laptop, Black Made of durable Neoprene (the wetsuit material) backed by a plush inner lining designed to safeguard the contents Easy-access zip-top opening, travels easily in bags Form-fitting design secures device in place Measures 10-4/10-inches by 12-7/10-inches by 1/2-inch