The Winnebago Boldt is available in 2 different flavors in regards to floorplans — the BL and the KL. Usain is a KL. The main difference is that the BL has the wet bath on the side and the bed in the back while the KL has the wet bath in the back and staggered twin beds on either side that can be combined into a single bed by using the flex bed option (basically a stand that pulls out between the beds and bolsters that can be inserted to fill in the gap).