The BearKat's® super well-thought-out construction combines the best in safety, comfort, and affordability! Your vision is unobstructed by the one-piece wraparound lens, which by its tight fit allows you maximum safety. Comfort is enhanced by the flexible temples and the non-slip temple sleeves are notched for a clip-on breakaway cord. Strong yet lightweight design. Single lens design with integral side shields for unobstructed view. Duramass® scratch resistant coating. Rugged polycarbonate lens filters 99.9% of harmful U.V. rays.