Different Nearsight Optical Corrective Lenses on Each Side Swim Goggles Mask, tBlue Swimming goggle with nearsight corrective lens available from -1.0 to -8.5 by increments of 0.5, tempered glass for safety and less scratchable than polycarbonate lens. IF YOU NEED DIFFERENT CORRECTIVE LENSES ON EACH SIDE, PLEASE SEND US A MESSAGE WHEN PLACING YOUR ORDER. Swim goggle with two broad peripheral view window, and swivel and adjustable buckles. Crystal, liquid silicone injected skirt and strap, Single edge seal, low volume. About Shipping and Handling Charge, please check the Shopping Cart at the upper-right corner after choosing the color and size. Or you may see other shipping options and applicable costs during checkout.