Funnylive Slim Laptop sleeve Case Carrying Bag Laptop Notebook Sleeve Slip Case Bag For Macbook Mac Air/Pro/Retina 11" 13" 15" (navy blue, 15.6'') Materialnylon + soft velvet lined interior Internal Dimensions: 15.2" x 10.7" (LxH) External Dimensions: 15.8" x 11.3" (LxH) Double zipper opening for easy access. Being slim and lightweight, the case does not bulk your Macbook up and can easily slide into your briefcase, backpack, or luggage