Five readers will each receive one Soap, moulded as four joined bars that can then be snapped apart. These can either be placed at different wash stations, or saved for later in a clear and resealable blister package provided.
The rectangular washing bars are translucent, with recessed lettering that spells the appropriately simple name providing the only decoration. This text intentionally wears away with use.
The bars are also fragrance free, "hypoallergenic and very gentle on the skin".
"By reducing soap to the fewest possible ingredients and eliminating potentially harmful additives, we've created a gentle and effective tool for the kitchen, powder room and shower," said Good Thing.
The British designer was an "obvious choice" for Good Thing, which intends to re-imagine mundane homeware items like dustpans, bookends and umbrella stands.
"The idea to create a bar of soap stemmed from our belief that this elemental and historically rich tool should be elementary in its nature — it should do what it's supposed to do, do it well, and do it without anything unnecessary," said Good Thing founder Jamie Wolfond, who contacted Morrison after noticing he was liking images on the brand's Instagram account.