The Tifosi Optics Swank Sunglasses are versatile shades for blending style and sport. Designed for performance on the hiking trails, biking, hanging out on the water, running, or driving to and from work. The Grilamid TR-90 frame is lightweight and features a non-slip fit so they stay put when moving about. The polycarbonate lenses are shatterproof and feature UVA and UVB protection against UV rays for your peepers.