Night Shade is cut from blocks of cellulose acetate, a plant-based material made from cotton linters and wood pulp. It is slower to work with than moulded plastic and far more forgiving to wear.

Hand-polished, twice

Each frame is tumbled for three days and then polished by hand, which is why the black looks deep rather than shiny. The lenses are CR-39, light and optically clear.

Care

• Rinse with lukewarm water, never hot.

• Dry with the microfibre pouch, not your shirt.

• Bring them to the studio for a free adjustment any time.