Using a high-quality PC lens greatly reduces the strong light eliminates reflected light and scattered light and the object is softer and clearer. The frame is made of TPU material which has good elasticity and strength light texture and is comfortable to wear. Not easy to deform can be used safely for a long time and the performance remains unchanged. Double Lens. The creation of a dual-pane thermal barrier between the cold dry outside air and the moisture generated by intense activity prevents distracting condensation from forming. You can adjust the elastic headband according to the size you need. The face of different sizes can be used and it can also be used with the helmet.