Sports Readers lenses for the RYDON sunglass model. If you own a RYDON sunglass model you can now simple purchase Sports Readers lenses and replace your current lenses. Its that simple and you'll be able to see better - cycling computers, HRM, iPhones all come into view a lot better now. The Powers they come in is +1.50, +2.00 and +2.50. There is a range of different tints from transition lenses, polarized or standard tints.