Lens Instead of using a pair of separated lenses the Speedcraft glasses use one single lens which has been extended to provide a superior top view and a huge, uninterrupted peripheral vision. The lens protects against high impact with a polycarbonate construction that is both hardy and advanced in provide high quality vision. To keep the lens clearer for longer it has also been treated with a scratch protecting coating and is treated with Hydroilo which helps to repel water. Frame The frame is made from Grilamid TR90 which is a highly robust material that is shatterproof whilst also being extremely lightweight and flexible. Read more… The frame comes with low air scoops and temple arm scoops to protect the lens from moisture and to keep it ventilated so that it doesn’t fog up. The temple tips and nose pads are coated in specialised TPE rubber which provides a firm grip for the glasses on the face even when you’re travelling at speed or at your most active.