If you specifically need a snug or loose fit, compare your laptop's actual dimensions with the internal dimensions of the case to ensure it's smaller. The closer the fit, the better. Basic Protection: As an inner shell, the outer layer is covered with polyester fabric, and the inner layer is filled with high-elastic EPE. This protects against dust, dirt, debris, scratches, and prevents collisions, vibrations, and squeezing when placed in a backpack or suitcase. Front Pocket Storage: Features extra pockets on the front with ample space for documents, chargers, mouse cables, mobile phones, memory cards, external hard drives, pens, etc. Comes with a Dedicated Small Case: Includes a dedicated small case for power adapters and mouse, which is portable, slim, and convenient for daily use. Warm Tips: To choose the correct size, please read the product instructions carefully before ordering. Applicable Sizes and Models: Please note the dimensions: 11-inch (Not applicable to 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 to 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 refer to 13-inch) [External Dimensions]: 35.5*25.5*1.5 cm [Internal Dimensions]: 33.0*23.0*1.5 cm 14-inch (14-inch screen diagonal 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 (Macbook 16 Pro choose this) [External Dimensions]: 38.0*28.0*1.5 cm [Internal Dimensions]: 36.0*25.5*1.5 cm 15.6-inch (15.6-inch gaming laptops refer to this) [External Dimensions]: 40.5*31.5*1.5 cm [Internal Dimensions]: 38.5*28.0*1.5 cm [Only internal dimensions can be installed; thickness can be installed up to approximately 2.5 cm].