DESCRIPTION

Keep the pace as you run in and out of the shade when you put on the photochromic Zeal Slingshot Sunglasses that adjust to the changing light. The NXT photochromic lens wraps around your face and filters out 100% of UV rays, and as you jog from the woods into the sunshine, the active lens gets darker to provide more tint and better vision in the sun while changing back to a lighter shade when you descend back into a dark forest.