Since hands are a contact point with the bike, I think what's right for different people is going to be different, just as it is with saddles and pedals. That said, I would be happy to ride with no gloves, however one of my local ride buddies pointed out that gloves can provide significant protection if you fall. Consequently, if it's warm enough, I wear
Cuero gloves. I have the original tan gloves, but they also make full-fingered gloves now.
