Photochromic technology: Photochromic lenses are based on the intensity of sunlight. The lenses darken in sunlight and briefly lighten indoors. You don't need to change lenses in different light conditions.
Lightweight and comfortable: These photochromic sunglasses weigh only 30 grams and you won't feel a thing on your nose. Ultra-lightweight cycling sunglasses reduce pressure on your nose and temples.
SAFETY: The thickened PC lenses with UV400 protective coating are shatterproof and scratch-resistant, offer more flexibility and impact resistance, and protect your eyes from dust, UV rays and other harmful radiation.
Versatile: ROCKBROS photochromic glasses can be used for a variety of activities.
