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Re:Surviving 75 hours alone in the ocean by piva00 on Thursday January 25, 2018 @04:23AM (#16229762)
Why would it be barely enough?

I'm not being snarky, asking because I used to surf and wearing a wetsuit would seriously make me warm, to the point where surfing on 10C would require me to unzip the wetsuit every half an hour to make me comfortable.

After my body warmed up the water inside the suit I didn't feel at all the cold of the water except on my feet/head, like I mentioned, I actually felt overheating after a while.

With that said I never calculated or researched how well do these wetsuits insulate for a prolonged period in water, have any data on that?

Re:Surviving 75 hours alone in the ocean by virtualwhys on Thursday January 25, 2018 @05:19AM (#16229954)
It's the duration that gets you. For example, if you go out in a 3/2 (3mm torso, 2mm arms/legs) when the water temps call for a 4/3, sure, you can surf for 45 minutes or so, but after that you'll start getting quite chilly.

This guy spent 75 hours floating in the water, not paddling around expending tons of energy competing with the pack for the next set wave :)