Tifosi Vogel, Gloss Black Sunglasses bring design and durability together with this streamlined eyewear system. The Grilamid TR-90,a homopolyamide nylon, which allows for tremendous bending strength and has high resistance to UV and chemical damage. Adjustability and comfort come together with the hydrophilic rubber nose piece and ear pieces, being adjustable, and ensuring that no-slip fit. Lenses: Brown Gradient lenses have 18% LT (light transmission). Weight: 24 grams. Fit: Small to large.