Photochromic sunglasses for outdoor activities, unisex, ROCKBROS Color:Black 24-SPEED SYSTEM

24-SPEED SYSTEM

It is very easy to assemble and remove and can be quickly attached without additional tools

28" 700C*28H*14G

Charging Time: 5H

perfect for carrying on the go

Photochromic sunglasses for outdoor activities, unisex, ROCKBROS Color:Black 24-SPEED SYSTEMPhotochromic 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: The photochromic sunglasses weigh only 30 grams, and you won't feel a thing on your nose. These ultra lightweight cycling sunglasses reduce pressure on your nose and temples. Safety: The thickened PC lenses with UV400