Special design for Apple Macbook air 13.3" Apple Macbook Pro  

It also can use for others 13" Notebook such as Dell and Samsung notebook tablet. Please refer to the detail size spec:

Inside size:

340mm (L) X 245mm (W) X 15mm (H)

13.39 inches  X 9.65 inches X 0.59 inches

Bag size:

345mm (L) X 250 mm (W) X 20mm (H)

13.58 Inches X 9.84 inches X 0.79 inches