Happy Lens and HD+ Lens enhances color and contrast, increases clarity, and improves mood and alertness Constructed from Grilamid, a lightweight frame material ideal for everyday wear due to its strength and flexibility Double injection rubber on the inside temple tips keeps the frame secure on your face all-day-long 6-base polycarbonate ARC lenses. 100% UV protection reduces eye fatigue and long-term sun damage Frame measures 57-19-145