OKADE T55.15.6 case supports laptops that come with a screen size of 15.6 inches. This design is made of rust-resistant stainless steel. They can also be made of portable materials such as nylon or polyester, durable and protective. Storage and Organization: Typically multi-passenger vehicle interior computer bags hold laptops and other accessories such as chargers and cables. It may also include quick outside access to needed items such as a mobile phone and keys.