External Dimensions: 12.5" x 8.7" x 0.8" / 31.7 x 22.0 x 2.0 cm, Internal Dimensions: 12.1" x 8.3" x 0.6" / 30.7 x 21.0 x 1.5 cm; Please compare your laptop dimensions with the item internal dimensions before purchasing; Please compare your laptop dimensions with the item internal dimensions before purchasing External material: water resistant exterior material to protect your laptop against accidental spills Internal material: Featuring a polyester foam padding layer and soft fluff interior, protect your device against accidental scratched External pocket : Providing additional storage space for smaller items such as your iPad , smartphone , or laptop accessories , and the zipper design won't let it slip off 【Compatible with】12.9" iPad Pro 2018-2021 M1, 13" Macbook Air 2018-2022 M2/M1, 13" MacBook Pro 2016-2022 M2/M1, Surface Pro 3 4 6 7 8 X, 12.4" Surface Laptop Go, 13" Galaxy Book Pro 360, 12.4" Galaxy Tab S8+