The Smith Forum Sunglasses offer lightweight performance with street-wise swagger. Made from Evolve frame material, the frame of these Smith Sunglasses are lightweight, durable, and is ecologically friendly. The Forum Sunglasses feature TLT Carbonic lenses which protect your eyes from harmful UVA/B/C rays, keep your vision distortion free, and resists impact. The 8 base curve of the Forum's lenses provide just enough wrap to protect you from the elements while still looking good. Be noticed in the high performance and style of the the Smith Forum Sunglasses.