Smith Threshold Sunglasses Black/Sienna Brown, Rose Copper, Clear SM-TDPCBRBK

Smith Sunglasses Threshold - TR90 Grilamid provides the strength and flexibility to survive the daily grind. Well suited for sport or casual use in hot or cold temperatures. 9 base curve combines just enough head curve and optical centration to protect you from the elements. Megol nose and earpieces grip your skin to help keep your frames on your frames. It looks like rubber, but appearances can be deceiving. Think of Rubber 2.0. It?s Hydrophilic Megol and its moisture absorbing qualities promise a secure, comfortable fit. Patent pending auto-fit adustable nose piece ensures that the frames you wear provide not only the smoothest style, but also the most comfortable and secure fit. Carbonic lens material is the most impact resistant lens material. Not in this country, not in the industry but in the whole world. That?s Carbonic, and it?s only the beginning. Injection mold Tapered Lens Technology for perfect optical precision and a new anti-scratch coating to keep them fresh. Lightweight. Ideal for sport. ANSI Z80.3 surpassing. Sienna Brown allows 19% light transmission. Ideal for bright sunny days and slight overcast conditions. The brown based tint absorbs blue light, sharpens visual acuity and enhances depth perception. Rose Copper allows 36% light transmission. A universal lens tint that provides the best vision for the widest variety of light conditions. Enhances depth perception, increases contrast and sharpens visual acuity. Clear allows 98% light transmission. Crystal clear lens. Ideal for night time activities, like night skiing.