The Thule Subterra 3-in-1 22in Rolling Luggage is a 3-in-1 piece of checked luggage that can conveniently split into two independently carry-on compliant pieces. The Subterras multiple bag solution allows you to pack either one large checked piece of luggage or two smaller carry-ons. It is easy to pack and stay organized with a spacious interior that divides into two separate compartments and opens into one large packing space. Plus; keep your belongings in place throughout travel with its external compression straps. Comes complete with quick access zippered mesh pocket and built-in ID card slot.