For a snug or loose fit, please compare your laptop's actual dimensions with the inner dimensions of the case to ensure it's smaller. The closer the fit, the better. Basic Protection: The outer layer is covered with polyester fabric, and the inner layer is filled with high-elastic EPE foam. This protects against dust, dirt, debris, scratches, collisions, vibrations, and squeezing when placed in a backpack or suitcase. Front Pocket Storage: Features extra front pockets with ample space for documents, chargers, mouse cables, mobile phones, memory cards, external hard drives, pens, etc. Includes a Dedicated Small Case: Comes with a separate small case for power adapters and mice, making it portable, slim, and convenient for daily use. Warm Tips: Please carefully read the product instructions below to select the correct size before ordering. Applicable Sizes and Models: Note on Sizes: 11-inch (Not applicable for 11-inch tablets) [External Dimensions]: 31.5*22.0*1.5 cm [Internal Dimensions]: 30.0*20.0*1.5 cm 12.5-inch (Not applicable for 12-inch Macbooks) [External Dimensions]: 33.5*23.5*1.5 cm [Internal Dimensions]: 31.5*21.5*1.5 cm 13-inch (Huawei, Xiaomi, and Apple 14-inch models refer to 13-inch) [External Dimensions]: 35.5*25.5*1.5 cm [Internal Dimensions]: 33.0*23.0*1.5 cm 14-inch (Screen diagonal 14-inch refers to 13-inch; Apple 16 Pro, Huawei D15) [External Dimensions]: 37.0*26.0*1.5 cm [Internal Dimensions]: 35.5*24.5*1.5 cm 15-inch (Choose this for Macbook 16 Pro) [External Dimensions]: 38.0*28.0*1.5 cm [Internal Dimensions]: 36.0*25.5*1.5 cm 15.6-inch (Refers to 15.6-inch gaming laptops) [External Dimensions]: 40.5*31.5*1.5 cm [Internal Dimensions]: 38.5*28.0*1.5 cm [Internal dimensions only; thickness can accommodate up to approximately 2.5 cm].