Tifosi Seek FC Sunglasses. The Seek FC features a full coverage lens shape and size. Made of Grilamid TR-90, a homopolyamide nylon characterized by an extremely high alternative bending strength, low density, and high resistance to chemical and UV damage. Hydrophilic rubber ear and nose pieces for a no-slip fit. Adjustable ear and nose pieces for a customizable, comfortable fit. Specifications: Style: Sport Frame Color: White Lens Color: Smoke Manufacturer Fit: Small, Medium, Large Interchangeable Lenses: Yes Extra Lens(es) Included: - Polarized: -