The concept of this prototype is to amplify the uniqueness of fabric formwork by creating a custom made stool in a simple way. Every user body shape, weight, and sitting gesture are unique. It gives me the idea to trace the butt from the user when the one sits on the mold in the early stage of the curing period. Their own signature stool can be created without using any computer aids or 3D scanning technique, just simply cast directly on the mould, plus using upholstery fabric with 3D relief to create a pattern on the surface of the concrete to give the unique sensation experience to the user.