Curvature Chair is a minimalist chair designed by Seoul-based studio Useful Workshop. The last model of the series. After a number of model making studies, the designers moved on to a more structural object, chair. From a very complicated three dimensional chair shell to a simple one, we practiced and refined for many days to finally find the optimized curvature and the ideal lengths. The results of curvature has been re-edited constantly in terms of its proportion and function.