Silhouette Accent Shades 8187 in 4540 frame color featuring classic grey gradient lenses. The Sant Martí showcases a contemporary octagonal lens shape, emphasized by Accent Rings that wrap around the lens to highlight its unique design. Clever side cut-outs provide optimal comfort and support by allowing precise positioning of the temples. These glasses offer superior comfort, are hypoallergenic, and crafted without screws, with a base 6 curvature. Their lenses feature Silhouette's innovative Light Management® technology, an anti-reflective coating on the backside, and high-impact polycarbonate construction, providing full UV A, B, and C protection, equivalent to UV 400. The Silhouette Light Management® technology ensures 100% UV protection, significant anti-glare protection, and enhanced colors. These glasses come in traditional sunglasses colors: grey, brown, and green.