Belkin 15.4 Inch High Rise Window Sleeve Notebook Case - Black (F8N062-KLG-DL) Dimensions: 15.4" Sleeve Exterior: 3mm Neoprene 12.4" x 14.6" x 1.25" Interior: 11.25" x 14.8" x 0.8" Window Material: Polyurethane Plastic Care Instructions: Hand-wash only with soap and water; lay flat to dry.