o'neill psycho tech 3/2+mm chest-zip full wetsuit - men's black/black, l o'neill if you don't have balance on the board, you're gonna be spending a lot of time in the water, but balance in your wetsuit is just as important. too thin and you'll be feeling the chill, but too thick and you might not have the flex and movement you need. that's where the o'neill psycho tech 3/2mm chest-zip full wetsuit comes in. it has a perfect balance of flexibility and warmth, able to keep warm in cool to cold waters without limiting your movement.