A. The frame of ski goggles is usually made from a durable but relatively flexible plastic, the most commonly used is polyurethane (PU). The frame will be backed with padding foam.
Most ski goggles lenses are made from a polycarbonate material that is shatter resistant. Ski goggles with a double lens will have a divider made of foam between the layers.
The strap, which holds the goggles in place, is usually made from elastic.