Description                                                                                             Perfectly suitable for hiking, camping, cycling, fishing and other outdoor activities.                                                             Anti slip off design, there are buckle straps and elastic rim to provides strong stability.                                                             The adjustable buckle strap prevents the backpack cover from slipping off, and the elastic rim can control the size of the rain cover, making it attaches firmly on your backpack.                                                             You don't have to worry that your backpack cover blowing away in strong winds or being pushed off by shoulder straps.                                                             Reflective strap design, there is a large reflective strip attached on the back of this backpack cover to offer visibility for the drivers at night.                                                             Specification: Material: oxford cloth. Color: show as pictures. Size: XS, S, M, L, XL. Size: XS, height: 25-30cm, length: 20-32cm, width: 15-18cm Size: S, height: 30-40cm, length: 20-32cm, width: 15-20cm Size: M, height: 40-53cm, length: 20-32cm, width: 15-20cm   Size: L, height: 63-65cm, length: 20-35cm, width: 19-23cm Size: XL, height: 70-75cm, length: 30-35cm, width: 20-23cm      Note: There might be a bit color distortions due to different computer resolutions. There might be size errors due to different computer resolutions.                               Package include: 1 * Backpack rain cover.