Model No.: X8274; internal dimensions of the case: 36.6x23.7x2.7 cm (14.4x9.3x1.1 inch) Compatibility: designed to perfectly fit for 15.6 inch ASUS Vivobook 15X OLED; 15.6 inch ASUS P1512/M515/L510/F515; 15.6 inch ASUS Vivobook Pro 15 OLED K3500/M3500; 15.6 inch ASUS Vivobook 15 M513/M1502/F1502/F1504/S513; 15.6 inch ASUS Vivobook S15 S533/M3502/S3502/K3502 Anti-Shock: EVA hard sleeve and features internal upgraded shock resistant padding layer, protect your laptop from inadvertent collision and accidental scratches when put in backpack or suitcase Waterproof: the smatree sleeve is made of durable 1600d nylon, it obstructs water effectively. Don't worry about splashing water, washable when laptop sleeve case becomes dirty Customized for ASUS Laptops: smatree has more than 20 sizes of hard EVA protective sleeve case customized for ASUS laptops. If you're not sure which model of case is fit for your laptop, please feel free to contact our customer service