The proSPORT Tailpipe square framed bi-focal sunglasses combine a casual sporty sunglass with a bifocal reader. Now you can see your GPS, read maps or a restaurant menu without switching your glasses! They are also a perfect pair for all outdoor activities such as cycling, fishing, running, golfing, motorcycle riding, driving, walking and reading at the pool! Full wrap frames protect your eyes dust and wind perfectly. Polycarbonate lenses provice 100% UVA and UVB protection and are also shatter and scratch resistant. Available bifocal reading powers are +1.00, +1.25, +1.50, +1.75, +2.00, +2.25, +2.50, +2.75, +3.00 and +3.50. Fits medium to large head sizes.