You don’t want to overheat in a thick wetsuit in tropical waters, and you also don’t want to freeze or risk hypothermia in a thin wetsuit in chilly temperatures.
You don’t want to overheat in a thick wetsuit in tropical waters, and you also don’t want to freeze or risk hypothermia in a thin wetsuit in chilly temperatures.
Meanwhile I would have been cold in a 7mm in those same conditions. When I was in Cozumel with my local club, most of the people were comfortable in either rashguards or shorties, but I started getting cold in my full-body 3mm by the end of each day.