Best thing I ever bought for cold weather water sports
http://hyperflexusa.com/product/play...oprene-jacket/
2mm neoprene hoodie - it's so damn toasty.
I took a dunk launching on a very cold early winter morning. It was gray and overcast all day and my under shirts were soaking wet. I stripped down to just the Playa hoody and stayed toasty all day without anything underneath it. Another bonus is WSB slime hoses right off the neoprene