WYND Blocker brings versatility in its eyewear line. Each temple features a quick release button allowing easy transformation from glasses to goggles. For this very reason, they are ideal for situations involving fast jolting movements like racquetball or basketball or when experiencing the extreme wind forces commonly seen in skydiving or extreme moto sports. Additionally, the backstrap allows for a more comfortable fit when wearing certain types of helmets. They also features a removable wind resistant eye liner. These glasses can literally go from casual to extreme wear in seconds! They are available in black, white, red, blue, and orange frames.TAC POLARIZED LENS – 100% UV400 protection coating blocks 100% harmful UVA & UVB rays while the polarization restores true colors and elimnates reflected, glaring, and scattered light. TAC (Triacetate Cellulose) technology provides a high-performance hard coated polarized lenses which have impact resistant and anti-scratch properties.