The clever modular design of the Trillium (3 cases in 1) computer carrying case system allows you to convert it in seconds from a comfortable backpack, to a vertical briefcase, to a lightweight, highly protective sleeve. The Trillium instantly unfolds to create a well-organized portable office for use on your lap or any desktop surface. Constructed of rugged expedition grade fabrics and the highest quality hardware, all stress points are reinforced, and like all of the finely crafted Higher Ground products, it comes with our lifetime warranty.