I have a sunblocking t-shirt for when we go jet skiing. It's great. Regular t-shirts when they get wet will let the sun burn you. I've had skin cancer on/off since 1992 so I have to be careful. I am seeing alot of parents making their kids wear the clothing at the beach, etc. They have shorts, t-shirts and long underwear type stuff for surfers, etc. They have the feel of Under Armour but lighter. They dry quick and the kids don't seem to mind them.