If you specifically need a snug or loose fit, compare your laptop's actual dimensions with the internal dimensions of the case to ensure they are smaller. 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 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: A dedicated small case for power adapters and mouse storage, which is portable and slim, making it easy for daily use. Warm Tips: To choose the correct size, please carefully read the product instructions before ordering. Applicable Sizes and Models: Please note the sizes: 11 inches (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 inches (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 inches (Huawei, Xiaomi, and Apple 14 inches refer to 13 inches) [External Dimensions]: 35.5*25.5*1.5 cm [Internal Dimensions]: 33.0*23.0*1.5 cm 14 inches (14-inch screen diagonal refers to 13 inches, Apple 16 Pro, Huawei D15) [External Dimensions]: 37.0*26.0*1.5 cm [Internal Dimensions]: 35.5*24.5*1.5 cm 15 inches (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 inches (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 [Internal dimensions only can be installed; thickness can be installed up to approximately 2.5 cm].