In between the sleeveless wetsuit and the skinsuit are core shorts. //
And those are also in descending order of their benefits. Sure, if you are going to be too hot in a wetsuit legal swim, and you really don't care about your time, wear wetsuit shorts and get your second or two a 100 advantage. I'm not sure they would be any less hot than a swim skin though, and you would be giving up maybe a second per 100 between those two. For me, I would always choose the full suit, drop the cap, and hope I got on feet that allowed me to work a lot less, thus creating less internal heat..
And those are also in descending order of their benefits. Sure, if you are going to be too hot in a wetsuit legal swim, and you really don't care about your time, wear wetsuit shorts and get your second or two a 100 advantage. I'm not sure they would be any less hot than a swim skin though, and you would be giving up maybe a second per 100 between those two. For me, I would always choose the full suit, drop the cap, and hope I got on feet that allowed me to work a lot less, thus creating less internal heat..