The frame of aluminium and magnesium alloy is particularly light, weighing only 11 grams. The horizontally plated temples have an exceptionally flat form. They are fixed to the frame without screws or adhesive. Anodised surfaces of 95 per cent recycled aluminium give the colours a warm character. The glasses are manufactured without soldering and have thus a reduced carbon footprint. The flexible nose pads are made of natural horn.