They are expensive and WILL break. I suffered a corneal abrasion after the temple snapped and the jagged plastic piece sprung forcefully into my eye. THE MOST painful experience ever. I now have an emergency room bill and a broken pair of CRAP $300 sunglasses. I filed a complaint with CPSC & their investigator told me that prescription glasses were not covered by the CPSC, but the FDA. Maui Jim's product is an expensive & DANGEROUS P.O.S!!! read full review »