The Oakley Radar Ev Path interchangeable lenses provide you with the chance to change lenses. Perfect to use in the UK, since the weather tends to change in a heartbeat. At least with these lenses, you'll be prepared no matter what. It could also be that you just want to change the look of your glasses, in which case you can choose for one of the other standard colours. If you're just looking for protection from wind and rain, then opt for the transparent lens. Glasses suitable for cyclists who need prescription lenses are not yet made to your specifications. So bear in mind that you'll have to take the glasses to your optician to have them made to the right corrective factor. Some cycling glasses require an additional insert into which the lenses are placed by your optician. If glasses aren't suitable for people with prescription glasses, then that means the lens isn't suitable to be corrected to your needs.