The highly curved frame design gives a good fit and provides optimal protection against wind and airborne particles. For the glazing of the wrap-around style frames, we use HD lenses made from extremely impact-resistant plastic materials and with the corresponding base curve. To ensure an unrestricted field of vision, the angle of inclination in front of the eye is also taken into account when calculating the prescription data. The lenses are then custom made with the resultant compensatory values. Further individual parameters such as vertex distance, pantoscopic tilt and head / body position during sporting activity may be taken and directly incorporated into the lens.