Evecase Apple Macbook Air 13 / Microsoft Surface Book 13.5 inch Laptop Suit Fabric Multi-functional Briefcase Case Tote Bag with Shoulder Strap - Gray PREMIUM MATERIAL: Made from high quality synthetic nylon polyester blend for durability and soft edge lining adds additional protection around the edges. Bubble foam padding provides extra shock absorption and protection for your device against scratches and accidental bumps. Water resistant fabric protects your device from light rain and accidental spills. ORGANIZATION & STORAGE: Padded laptop compartment to keep your laptop safe and secure. Two generous exterior front and back pockets to store essential accessories. Main compartment lined with thick water resistant neoprene with a foam bubble padded layer for greater protection and shock absorption. COMFORT & CONVENIENCE: Removable and adjustable padded shoulder strap to prevent should fatigue and the leather accented top handles provides a comfortable grip. DIMENSIONS: Exterior Dimensions: 360 x 275 x 40 mm (14.15 x 10.75 x 1.75 inch ) / Interior Dimensions: 340 x 245 x 25 mm (13.25 x 9.5 x 1.00 inch ) COMPATIBILITY: Fit for Apple Macbook Air 13, Pro 13", iPad Pro 12.9" 2018, 2017 Microsoft Surface Pro 6 12.3", Surface Laptop 13.5inch, Surface Book 13 inch, New Surface Book with Performance Base (2016) EXTERIOR: 360.2 x 270.5 x 41 mm (14.16 x 10.76 x 1.73 inch ) INTERIOR: 340.2 x 246 x 25.55 mm (13.26 x 9.6 x 1.12 inch) MAX INTERIOR DIAGONAL: 425mm (16.5 inch)