Advantage of oakley sunglasses

They are secure
All of the Oakley's I have tried on are very secure. I can shake my head violently and was not able to dislodge the glasses, yet all of the glasses were relatively comfortable. You should have no fear about having your glasses fall off during a roller coaster ride or other violent experiences .
They are comfort
The only problem I have had with some glasses I have tried is the tips of the arms pinched me. This I assume is a personal issue but it is also something I recommend you look at carefully before purchasing a pair of Oakley's. Most pairs I have tried, including the one's I own, do not do this to me. Also the nosepiece's are comfortable and secure.
UV protection
This is not an option, it is on every lens and you shouldn’t buy a pair of sunglasses from anyone unless you have UV protection. Ultraviolet rays are above the light spectrum (and are the same rays that cause sunburns) so they are not blocked by tinted glass, only rays in the light spectrum are. Non-UV sunglasses will damage your eyes because the darker glasses opens up your pupils more which allows more UV rays to enter in and can increase damage to your eye. In summary, this is a bad thing.