Yoku SH, designed by Marco Williams Fagioli for Effe, combines the sauna, Turkish bath and shower in a single spa space, so restoring the original experience of these ancient practices. The system is designed to be installed both in private settings and public structures devoted to wellness. The name and inspiration come from a branch of Japanese natural medicine known as ato shinrin-yoku, or “woodland bathing”, a practice based on the principle that deep immersion in nature has surprising beneficial health effects. The vertical wooden architectural elements of the system evoke the feeling of being surrounded by trees, giving the heat bath an intimate and spontaneous sense of well-being. Yoku SH is made with high-performance natural wood structural panels to which different finishes are applied: wooden slats in the sauna and stoneware tiles in the Turkish bath. All the materials used are environmentally friendly and free from plastic. The three finishes are in top quality wood (heat-treated aspen, heat-treated solid wood and canaletto walnut) and are not produced by deforestation. Large transparent openings in smoked tempered glass, set back from the front elevation, help to create a sophisticated, suffused setting and relate the interior to the surrounding space. Its fine furnishing power is heightened in the model in which the façade is transformed into a large open bookcase, with shelves in oxidized steel sheet, to house objects, books and towels. Produced in the measures 342 x 170 x 214 h, the system is available in three versions: Yoku D/SH with wooden door on the sauna side, Yoku G/SH with glass door on both sides (sauna and hammam), Yoku S/SH with glass door and shelving.