Whether you are surveying the forest, desert, or waterfront, the Survey Sunglasses by Smith gives you performance optics for your outdoor adventures. Carbonic TLT lenses are built tough with impact-resistance, water and oil-resistant coatings, and offer 100% UV protection to give you a lens that is designed for your fast-paced outdoor lifestyle. Lightweight and flexible frames are equipped with Megol nose and temple pads that offer reliable grip that enhances when exposed to moisture. And with a medium frame size, these sunglasses can comfortably fit while wearing a hat or helmet. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.