Silhouette Titan Dynamics Contour Demo Rimless 5540 Eyeglasses Color:3530 - Cassis Sundown it's the same material NASA

it's the same material NASA used for missile heat shields

The frames' flexibility and light weight help encourage consistent wear throughout the day

refined Blue

these frames suit most face shapes and deliver all-day comfort

they carry the same commitment to quality materials and functional design

Silhouette Titan Dynamics Contour Demo Rimless 5540 Eyeglasses Color:3530 - Cassis Sundown it's the same material NASASilhouette Titan Dynamics Contour 5540 Eyeglasses Chassis made by Silhouette are Unisex Eyeglasses. They have a Round shape, and come in 6 colors, which are black, blue, brown, creme, rose, and silver with 5 sizes, which are 17_130, 17_135, 19_135, 19_140, and 21_140.