Never worn!!! These Native Highline Polarized Sunglasses are fantastic! Here are some features... N3lenses block up to 4X more infrared light than regular polarized lenses / High-performance thermoplastic Rhyno-Tuff Air Frames material is extremely lightweight yet durable enough to withstand high-velocity collisions and temperature extremes / Cushinol Temple Boots create a nonslip grip that keeps your sunglasses in place during any activity / Mastoid Temple Grip ensures the temple ends hug the mastoid bone behind your ears