Don't get just another pair of sport sunglasses, get the Tifosi Optics Just Sunglasses for fitness and running. Their scratch resistant lenses eliminate glare, UVA, and UVB rays for long lasting sun protection and crystal clarity throughout your workouts. A vented design makes sure the lenses don't fog up mid run, and the durable TR 90 frame material stays strong yet bendable for long lasting comfort. Hydrophilic temple pads make sure the glasses don't slide down your sweaty face, and adjustable nose pads ensure a secure fit. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer andor birth defects or other reproductive harm.