Locked Side Laptop Liner Bag For MacBook Pro 15.4 inch A13981. The four corners are all-inclusive and intimate care, the all-inclusive side is anti-falling, disperses impact, and effectively protects daily collisions2. Made of PU leather, it feels delicate, breathable, light, and waterproof3. The inside is made of satin material, which is scratch-resistant, abrasion-resistant and shock-proof4. It is a protective cover when installed in the notebook, which protects the safety of the computer, and when it is taken out as a mouse pad, it is multi-purpose5. Fabric: Matte PU leather6. Internal dimensions: 11 inches: length 30 x 19.2 cm, 12 inches: 28.1 x 19.7 cm, 13 inches: 30.4 x 21.3 cm, 13.3 inches: 32.5 x 22.7 cm, 15.4 inches: 36 x 25 cm7. Four-in-one includes: liner bag, power supply bag, mouse storage bag, cable winder