Typically, upholstery is fastened to furniture by adhesives, tacks or staples. London-based industrial designers Yael Mer and Shay Alkalay, a/k/a Raw-Edges Design Studio, took a different approach with this experimental chair design.
Its wooden frame has a purposeful notch in it. The upholstered foam is simply wedged into it and held fast by friction.
This would make repair, or removing the upholstery to wash the slipcover, easy.
At present the unnamed chair is still in the design phase. It will presumably evolve into a saleable product; the project is being undertaken in collaboration with Italian furniture company Bolzan.