Surfing in Winter

Now I'm home, I've been getting back into the sea and re-acquainted with my surfboard. Despite sub-zero temperatures outside I cope with the cold in the sea by wearing layers of thermals, thick wetsuit, double hood, gloves and boots. Not that dissimilar to my biking gear. My only problem is that after eight months on the road of riding my bike, my shoulders are broader and so my smaller (and warmer) wetsuit currently doesn't fit.