Sit back, mellow out and set the mood to "cool." Serfas has you covered with the Flattracks. They're lightweight and form-fitting with scratch-resistant, polarized lenses that enhance contrasts to help you see better. They also deliver strong impact resistance, a no-slip nose bridge and 100% UVA and UVB protection. The sleek, wrap-around frames protect you from the sun, wind and glare, too.