Osso & Bottone by Mutina: sculpted porcelain that passes the pendulum

British specifiers read outdoor floors through one number: the pendulum. Osso & Bottone arrives with its figures declared — PTV 55 dry, 45 wet (EN 16165-C) — which means a terrace, a roof garden or a courtyard café can be signed off in the rain it will actually live in. Designed by Ronan Bouroullec in 2024, this is the first Mutina collection conceived explicitly for the outdoors, with a surface refined enough to carry on inside.

The pieces are unglazed porcelain stoneware, full-body coloured with mixed earths rather than flat pigments, 10 mm thick, in four sculpted formats: the bone-waisted Osso L and S, and Bottone L and S, whose semicircular edge cuts close into perfect circles when two pieces meet across a 4 mm joint. Five colours — Sabbia, Grigio, Rosso, Blu, Verde — and the rest of the datasheet holds up: 0.15% water absorption, stain class 5, frost resistance, R11 and DCOF 0.66.

Use it where the plan steps outside — breakout terraces, entrance thresholds, courtyard meeting spots — or keep it indoors for the drawing alone. The 4 mm joint is mandatory on Bottone: that gap is where the pattern completes itself. Technical sheet and certificates can be downloaded from this page.