1. Size: nal size -32.0 21.0 2.5cm. External size -33.5 22.5 3.0cm2. Waterproof and moisture -made from waterproof polyester canvas fabrics, which can effectively blo water and vapor. Don't worry about wet laptops and accessories from splashing or rainwater3. Enough sp storage and smooth zipper -there are 3 poets in front, a large poet in the main warehouse, enough sp can be saved, mouse, cable, mobile phone, memory card, external hard disk drive. Your tablet/laptop computer4.360 Soft lining lining -nal is made of soft veet cloth, with additional soft anti -static fluffy fabrics, which can effectively absorb the impact and reduce damage caused by accidental impacts, and protect the laptop from scratch scratches.5. Comfortable feel -long -term grip, exquisite cable craftsmanship, ergonomic bands, sturdy