I wear joe rocket phoenix gloves when it's really hot. when I feel I need a little more protection I wear JR UFOs. they're really good undergloves and don't make your hand look like a bear paw (i.e. icon's equivalent gloves).
i got some olympia gel gloves which ive crash tested. its hot in hawaii all the time and these are the best ive found that have been crash tested. ive seen people use moto cross light gloves also but i cant say ive crash tested those..