Basically, the more curve scooter manufacturers have, the less of a correction they can handle. To help protect the
eyes from the elements a large number of motorcycle sunglasses offer
several different types of foam that help form a better seal around the
eye sockets. Buying prescription motorcycle sunglasses can be a very
difficult process.
Given the requirements above, it's
sometime hard to believe that any manufacturer of sunglasses could ever
be successful. One solution that has proven to be very useful is the use
of photochomic (light adjusting/transitional) lenes.
But
companies like Wiley X, Bobster and Global Vision have been able to
succeed in producing a line of sunglasses and goggles that meet and
often exceed these requirements.
Motorcycle sunglasses must
be aerodynamic to insure that they stay in place even at high speeds.
All of this is being made available with the special requirements of
motorcyclists. Motorcycle sunglasses must provide optically correct
vision that doesn't distort the view of the road ahead.