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 3-D designed temples recreate an exposed

energetic vibe that appeals to kids while staying practical enough for everyday school wear

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

refined Blue

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.