I've worn a variety of clothing including the Columbia sportfishing shirts with vents. It works well. I've found the Prowik shits from these guys to be the best for hot weather. They are great for long distance racing. I wear the long sleeve ones. They work great and they wash and dry very easily. A bit pricey but they occasionally have sales. Patagonia also makes a super lightweight shirt which are very pricey. I have had one for 6 years and it still looks good. For shorts the light ones with zippered legs work well. I prefer the heavyweight cargo shorts since decks on racing boats tear up the lightweight stuff.