Developed for movin’ and shakin’, the Perma Grin features a snug fit and aggressive temple curve for great wraparound sun protection. Built-in ear ports that act as retainer cords, reducing the chance of dropping them in the water – or anywhere else you don’t want them. The lens shape widens towards the temple frame to provide maximum protection against wind and glare. Equally suited for jumping out of planes or floating leisurely down the river. Keep them peepers protected in style! 100% Polycarbonate Protective Eyewear 8 base shatterproof polycarbonate POLARIZED lens with scratch resistant coating UVA/UVB Protection