If you specifically need a snug or loose fit, please compare your laptop's actual size with the inner dimensions of the case to ensure it's smaller than the inner size. The closer the match, the better the fit. Basic Protection: As an inner shell, the outer layer is covered with polyester fabric, and the inner layer is filled with high-elastic EPE, which can prevent dust, dirt, debris, scratches, and protect against collisions, vibrations, and squeezing when placed in a backpack or suitcase. Front Pocket Storage: There are extra pockets on the front, with ample space to store documents, chargers, mouse cables, mobile phones, memory cards, external hard drives, pens, etc. Comes with a Dedicated Small Case: A dedicated small case for power adapters and mouse boxes, which is portable and slim, and convenient for daily use. Warm Tips: To choose the right size you need, please read the following product instructions carefully before ordering. Applicable Sizes and Models: Please Note the Sizes: 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 (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 (Macbook16 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].