YX Outdoor Sports Athlete's Sunglasses, with 4 Set Interchangeable Lenses,100% UV protection Material: Polycarbonate (PC) lens,Frame material from gemany Excellent anti-abrasion and impact resistance, with anti-slip legs for extra grip behind the ears The interior frame is seated with soft foam for comfort wearing,prevent sweat into your eyes UV 400 PROTECTION,it can block 99%-100% of both UVA ,UVB and UVC harmful radiation Full set of equipment,used in different occasion,pls pay attention to the image, have surprise 30 DAY MONEY BACK GUARANTEE-All customers enjoy 30 Day Money Back Guarantee.Customers can return and get refunded in case the purchasing is not satisfactory for any reason. You have no risk to try.