In a tangible breeze on a sunny day I popped on my Furi's and went on my way on my bike. Sweeping bends at 20mph without glasses plays havoc with your contact lenses, but these glasses are superb. They hug your face without feeling tight, and the unusual ribbed rubber nose pieces may seem odd, but have a two-fold benefit: they not only absorb all friction, they also let through just enough air so you stay comfortable and the bridge of your nose doesn't get sweaty (which in turn means they stay in place). These specs have full sun protection, however they are not overly dark, so clarity in all lights is very good. They clean up superbly and deflect grit and the odd stone ensuring if you off-road then you're very well protected. Comment by Helen. GRT customer. All colours are gorgeous.