Brand: ROCKBROS
Color: Blue
Material: PC (lenses), TR (frame)
Weight: 29 g

Lightweight & comfortable: only 29 g/ pcs, ideal for long time wearing. Ultralight bike sunglasses reduces the pressure on your nose and temples. Soft silicone nose pads fit your nose well for best wearing comfort.

Photochromic technology: smart bike sunglasses automatically lighten or darken in changing light conditions without having to switch between glasses. Frameless design for clearer peripheral vision to avoid the frame blocking your view.

Versatile: ROCKBROS photochromic glasses can be used for various activities, such as golf, cycling, driving, fishing, skiing, running, tennis, racing and other outdoor sports.

Safety: The lens of the sunglasses are made of PC(polycarbonate), and the material blocks 100% of UVA, UVB and UVC rays, as well as harmful blue light up to 400nm. And the frame of the sunglasses is made of TR, with super toughness, collision, wear resistance and high temperature resistance.