One of our favorites around the office the Oakley Half Jacket XLJ sunglasses with interchangeable lenses are perfect for a wide range of outdoor sports including hiking cycling and climbing. This season we added the increased contrast rose-tinted G30 lenses to our selection giving cyclists golfers and trail runners better visual clarity in overcast flat light. While the XLJ sunglasses are very similar to Oakley's standard Half Jacket sunglasses you'll find that these sunglasses have an extended vertical rake that gives you better coverage especially while glancing down at your bike computer on the handlebars or your heart rate monitor on your wrist. The styling and coverage is similar to the sport-oriented Oakley M-Frame but we tend to wear our Oakley Half Jacket XLJ sunglasses just about anywhere. Patented Unobtainium earsocks along the temples hold the Half Jacket XLJ firmly in place even after you find yourself soaked on a long run or ride. Just like previous Oakley Half Jacket XLJs this one has an interchangeable lens design so you can change the lenses as clouds cast shadows or replace the lenses if you manage to scratch them. (It happens but not as often as we sometimes expect it.)