APPLICABLE SIZE AND MODEL: Compatible with 13.3 inch Laptop/Notebook/Surface, 14"/13.6"/13.3" MacBook Air Pro M2/M1/M1 Pro/M1 Max [A2681, A2442, A2337, A2338, A1706, A1708, A2159 , A2179, A2251, A2289]. External dimensions: 35 x 25.5 x 3cm; Internal dimensions: 33 x 24 x 2cm. If you particularly need a snug or loose fit, check the actual dimensions of your laptop before purchasing, as different models and brands will vary in size. MULTI-LAYER PROTECTION: The outer diamond-style layer provides protection against shocks, bumps and extrusion when placed in a backpack or suitcase. INTERIOR ZIPPER AND SOFTNESS: Soft padded inner layer to protect the laptop surface caused by accidental scratches. FASHIONABLE AND PRACTICAL DESIGN: Perfect for travel and business, personalize your laptop with its own unique style. Emphasizing the aesthetics and safety of your laptop at the same time in the design. Please attention! To choose the correct size you need, please read the following instructions in the product description carefully before ordering. If you have any concerns about the dimensions, please do not hesitate to contact us.