The Hercules sunglasses provide extraordinary protection visibility and comfort that you demand for a pair of motorcycle sunglasses. With the Shatterproof Polycarbonate Lenses, your eyes will be protected from any flying objects. Your visibility is enhanced by the matching side lenses that help in insuring that you have good peripheral vision. The Flexible Frame Ends help insure that the glasses will comfortable fit under your helmet regardless of whether you wear a skid lid or a full face helmet.