Compatibility – Designed for Microsoft Surface Laptop 3 13.5" / Surface Book 2 13.5" / Surface Book 3 13.5" / Surface Book 13.5" (2016 and 2015) / Surface Laptop 2 13.5" (2018) / Surface Laptop 13.5-inch tablet. Full Protection - Synthetic leather with Velcro closure for security. High-quality felt material on the exterior and soft flannel lining on the interior. Multiple Compartments - One main compartment for your laptop and a second compartment for papers, books, tablets, and more. The two back pockets are lined with flannel, which can accommodate mobile phones, headphones, wallets, keys, etc. High-Quality Material - The lining material is abrasion-resistant and won't scratch your computer; the felt absorbs shocks and always protects your device. Note - Interior dimensions: 13.4" x 10" (340mm*255mm). Please measure your device's size before ordering.