Funnylive Slim Laptop sleeve Case Carrying Bag Laptop Notebook Sleeve Slip Case Bag For Macbook Mac Air/Pro/Retina 11" 13" 15" (purple, 13.3'') Materialnylon + soft velvet lined interior Internal Dimensions: 13.5" x 9.9" (LxH) External Dimensions: 13.9" x 10.6" (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