I wear the tech fabric tank from Target and it works well, better than my sleeveless jerseys. My ride leader recently sent me an article about keeping cool during rides. It said to use a tube sock filled with ice tied around your neck. So last week it was close to 90 when I went on my ride and the icesock kept me cool. It does melt all over your top so that helped keep me cool as well (thank goodness my shirt wasn't see through) I'm sure it looked kinda dorky but my wimp factor in the heat makes me not really care. Maybe next time I'll try the boobyice