It is usually considered impossible to create a bathtub with a free shape method.Hinoki Soken, however, has made it possible, based on the technical developments that we have established through wooden bathtub making. Especially, the characteristic structure does not require metal “hoops,” which are seen as essential to R-shape bathtubs. The O-Bath was developed in collaboration with the world-renown designer Motomi Kawakami. We have achieved this modern design by distilling Japanese taste. This excellent product has received high praise from both domestic and international customers, and it won the Good Design Award 2010.