11 inch universal fit: This sleeve is designed for most 11' devices (MacBook Air / Laptop / Tablet / Notebook / Chromebook). External dimensions (L x W x H): 12.80' x 9.06' x 0.79'. Internal dimensions (L x W x H): 12.20' x 8.46' x 0.79'. If you need a snug or looser fit, compare your device dimensions with the internal dimensions; the more similar the dimensions, the better the fit. Multilayer protection: The outer layer is PU Leather to guard against drops, dust, dirt, debris and scratches when used as an inner bag in a backpack or suitcase. The fluffy fur inner layer cushions and protects the outer surface of your laptop. quality materials and closure: Made with water resistant PU leather and a soft fluffy interior for reliable protection. A strong loading zipper keeps the sleeve closed smoothly and protects the contents inside. Fashionable design: A stylish sleeve that lets you your laptop with a unique look while providing practical protection. Use scenarios: 1) Daily commute or school: Slip the sleeve into your backpack or bag for everyday protection during travel between classes or to the office. 2) Travel: Use the sleeve as an inner bag inside a suitcase or larger bag to shield your device from bumps and dust during transit. 3) Office or campus work: Keep your laptop protected on desks and in transit between meetings or study sessions without adding bulk.