"I ordered these prescriptions lenses in polarised VR28 for canoeing and kayaking. The ordering process was easy and the lenses arrived after about 10 days from the order. Once you have your prescription this is a fast and (compared with my high street optician) relatively inexpensive way to keep your Oakleys in use. Really impressed with the service. The lenses, by the way, are great, letting in just the right amount of light for paddling in most conditions."