Tifosi Swick Sunglasses are vying to be a part of your adventure with a fit made for those who take full advantage of life. Casual appearance meets technical features with a light, no-slip frame, and shatterproof, scratch-resistant lenses. FEATURES : Grilamid TR-90 frame is light and durable Shatterproof lenses are great for riding 100% UVA/UVB protection Integrated hinge never pulls hairs Hydrophilic nose pads provide grip Glide technology for no-slip fit Fits Medium to XL heads Weighs 26g