I purchased this and stored it without using it much. There are no stains or marks. I do not have any pets, and it has been stored in a smoke-free environment. An inner bag with a handle, convenient for carrying: ■ Can store laptops up to 13.3 inches ■ Features a front pocket for storing small items like cables ■ The interior of the PC compartment uses a brushed material to prevent scratching the laptop. ■ This product meets at least one of our environmental certification standards and displays the "THINK ECOLOGY" mark. ■ External dimensions: Approximately width 350 x thickness 35 x height 260 (mm) ■ Internal dimensions: Approximately width 315 x thickness 30 x height 235 (mm) *Reference storage dimensions ■ Weight: Approximately 170 (g) I am selling this because I have a similar item. It will be shipped via either regular mail (Teikeigai Yubin) or Yuu Yuu Mercari delivery.