Zipper Closure Hairon cowhide on Leather on back Material: cowhide and Leather PLEASE carefully check your device dimensions against our laptop sleeve's internal dimensions to ensure perfect fit Measurements: *** internal dimensions: We have a foam that goes inside that resembles a laptop, and that will determine the exact size of what fits inside. SMALL 12"W X 9"H internal dimensions 11.25" W X 8"H X 5/8" D Fits iPads, laptops and tablets up to 13” screen MEDIUM 14.5"W X 10.5"H internal dimensions 13 7/8" W X 10"H X 5/8" D Fits laptops and tablets up to 15" LARGE 16”W x 11 1/4”H internal dimensions 15" W X 10.5"H X 5/8" D Fits laptops and tablets up to 16" PLEASE carefully check your device dimensions against our laptop sleeve's internal dimensions to ensure perfect fit. Laptop case is made of genuine cowhide and leather. Fabric layer on the inside protects against debris and scratches. Double-way zipper closure allows you take out/ put in laptop easily. Slim and lightweight