The Soft Edge 100 lounge chair from HAY, as its name suggests, features a pleasant, rounded design: the edges of its seat and low backrest curve back eliminating any sharp edges and corners. When creating the chair, design studio Iskos-Berlin utilized the latest innovations in moulded plywood that allow new three-dimensional forms and reduced consumption of natural resources. The result is Soft Edge, a lightweight and stackable lounge chair that is well suited for homes and public spaces alike.

In 2021, HAY renewed the surface treatments of its wood furniture by replacing their paints and lacquers with more environmentally friendly, water-based alternatives. This chair is of newer production and has been finished with a water-based lacquer.