A buddy of mine has a pair of these and I'm hugely impressed. The contrast and clarity from the red lenses is fantastic. I've been scouring the internet and all I can find are replacement lenses on sale but no glasses, as Specialized discontinued their optics range about two years ago. If anyone has a pair lurking in a drawer or the back of a cupboard that they'd like to sell, I would be very interested! I live in Gloucestershire, just north of Bristol. Thanks!