I wear a 3mm shorty suit in cold weather. Thin poly underneath helps it go on. I have 2 suits and should be between them. There smaller is too tight across my chest and shoulders. So I don't wear it unless I have help you can close it. The next size is actually to loose as it doesn't trap the Water but let's it drain out. If I get wet in cold weather I slip on a thin rainsuit which stops the wind. YES it is much warmer and we'll worth the trouble. However buy it where you can try it for size.
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Stan
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