Used to use one regularly for all of my riding - commuting, recreational, and touring. Not really fond of it when it gets hot out. However, I haven't noticed any additional aches and pains from wearing one. Pretty much gave up using it for everything but touring. On the next tour I'm going to try someone's advice of carrying it in a pannier and securing the tube up around the stem somewhere. I don't care if I don't know how much water is left. I'll drink that first and will have extra water when it's gone.