Abstract: A combination trailable backpack for use carrying goods over a variety of types of terrain, the trailable backpack consists of a backpack-type harness portion, a rigid and essentially vertical support member coupled to the shoulder harness portion, a trailable portion having a yoke section coupled to the essentially vertical support member such that the yoke can be slidably moved parallel with the vertical support member. The trailable portion that has an openable and closeable enclosure portion for storing goods to be transported. Moreover, the trailable portion also has one or more wheels for providing rolling support to the trailable portion, such that when the yoke is moved to a position in a lower part of the vertical support member, the wheel(s) provide rolling support to the trailable portion. When the yoke is moved to a position in an upper part of the vertical support member, the wheel(s) rise off the ground and the entire trailable backpack is supported by the backpack-type harness portion.