Lenovo Yoga Windows Laptop 11e Case A case for any situation, made for Lenovo's Windows version Gumdrop's DropTech Lenovo Yoga 11e Case for Windows is a shock-resistant combination of thick silicone bumper skin and rigid polycarbonate casing. This case features transparent panels on the top and bottom of the case, allowing you to personalize and identify protected laptops by asset tag, school logo, photos and more!