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.