Size: 14.1 to 15.4 inchesExternal dimensions: 39.0x28.0x3.0cmInternal dimensions: 37.5x26.5x2.5cm1. fluff inside the gentle care of the computer, the middle of the pearl cotton shockproof, surface fluff effectively reduce the damage to the computer2. Anti-splashing water easy to clean, surface anti-splashing water. Water stains, a wipe is clean3. Reasonable storage layers, double layer design, no matter how thin, there is also a sense of space4. Light and simple, fit the fuselage, light and not cumbersome5. Internal tongue page design, effectively slow down the collision, prevent zipper scratch love machine, fine selection of hardware zipper material, smooth and easy to pull