Lenovo 11 Inch Laptop Sleeve - Flex 11" Slot-in Sleeve Laptop Case, Grey (GX40J46556) Dedicated port openings allow you to use all of your connected devices with the covering in place Form-fitting sleeve ensures a precise fit for your Flex 3/4 2-in-1s Protect your Flex 3 or Flex 4 Multi-Mode notebook in all of it's modes