Ana
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Why would you want the hassle of a dry suit or any suit in warm waters.
why would anyone puts a jacket on captain? is not easy to be thermally challenged (I know)... right now is around 60 outside and I see people wearing shorts, I need long pants, socks, a shirt AND a sweater. I even have a jacket that stays in the car for when I walk into a supermarket, oh yes a blanket in the trunk for when I go to the movies.
...and for waters bellow 72-73 degrees you bet I wear a DRY SUIT
by the way a shorty for me is useless, the concept of just warming up the core gets lost on me. If my arms are cold, I"M COLD. In my 20's and early 30's I was cold everyday, all day. But didn't use appropriate thermal protection because "nobody needs a jacket when is warm" Until I realize that my misery could be easily solved by simply adding more thermal protection...... I still remember the first dry suit dive, first dive ever without convulsion-like shivers, what a great thing that we can fit the amount of protection to our needs.