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Does a rash guard help?

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kitewise
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Does a rash guard help?

Postby kitewise » Sun Apr 13, 2014 3:57 pm

Does it make it any warmer to wear a polyester rash guard under ones wetsuit? I'm not sure they do much of anything over ones wetsuit. I do find that my harness shifts easier if I'm wearing one.
I seem to be a bit chillier after it gets wet. Is that just my imagination?
Is it any better to wear anything under a wetsuit for added warmth?
I'm curious.
Phil

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Re: Does a rash guard help?

Postby Erlend M B » Sun Apr 13, 2014 4:32 pm

Rash guards are used to avoid rashes, and some also stop UV... Doesn't help against heat loss. Use something wool for that.

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Re: Does a rash guard help?

Postby cglazier » Sun Apr 13, 2014 6:33 pm

Common rash guards are made of thin polyester and nylon. They are designed to prevent surfers rash and to block sunshine but do nothing to keep you warm. Actually I find wearing just a rash guard colder than wearing nothing due to water evaporation.

You can buy thick shirts made of polar fleece (actually polyester) that feel soft and furry. These work great under your wetsuit to keep you warmer. Never wear cotton as it adds no warmth when it is wet.

:wink: CG

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Peter_Frank
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Re: Does a rash guard help?

Postby Peter_Frank » Sun Apr 13, 2014 7:17 pm

Chris is right - if you wear a rash guard outside your wetsuit, it will be colder.

I do it myself, but that is for safety only, so visible if you get "lost at sea".

Inside your suit it does not make any sense really, as the wetsuits (good ones) are designed so they have max warmth with the given small water or sweat layer inside...

8) Peter

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Re: Does a rash guard help?

Postby edt » Mon Apr 14, 2014 5:11 am

There is a vapor gap between the wetsuit and the skin. Without any clothing under the wetsuit this vapor gap is small, but with clothing you can increase the size of it and it will add effectively a millimeter or two. Polypropylene (your basic thermal underwear) is what I would suggest, I like a one piece otherwise your shirt or leg thermals will get bunched up that's uncomfortable. Hyperflex makes a range of clothing you can wear under the wetsuit for additional warmth but any decent polypropylene would work, like the underarmour stuff. Not sure how good a rash guard is under the wetsuit, sounds like it's not working for you. You notice a big difference with the right thermal layer under the wetsuit.

Wait did you mean "under" or "over" the wetsuit.

I always wear a rash guard over the wetsuit they are cheap and make your wetsuit last a lot longer but do make you colder.

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Re: Does a rash guard help?

Postby Bain » Mon Apr 14, 2014 6:37 am


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Re: Does a rash guard help?

Postby g00se » Mon Apr 14, 2014 1:49 pm

I wear a rash vest under my wetsuit, to stop neck rash from the wetsuit seal. Otherwise it looks like someone tried to strangle me :naughty:

For warmth you are way better wearing one of these over your wetsuit. Stops virtually all wind chill and makes a huge difference to how warm you feel.

Image

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Re: Does a rash guard help?

Postby edt » Mon Apr 14, 2014 2:37 pm

I got one of those neoprene jackets they are nuts! You can come in put on the jacket and instantly warm up, or take it off and cool down. Definitely a great part of the kit, spring hoodie, winter hoodie, spring gloves, winter gloves, neoprene boots, dive socks, a full wetsuit you can go from 32F up to 70F.

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Re: Does a rash guard help?

Postby kitewise » Tue Apr 15, 2014 2:27 pm

Peter_Frank wrote:Chris is right - if you wear a rash guard outside your wetsuit, it will be colder.

I do it myself, but that is for safety only, so visible if you get "lost at sea".

Inside your suit it does not make any sense really, as the wetsuits (good ones) are designed so they have max warmth with the given small water or sweat layer inside...

8) Peter


Thanks......... I agree that it feels colder.
Now.... Does that mean that if one wears BOARDSPORTS outside or inside ones wetsuit that it will actually feel colder?
Phil

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Re: Does a rash guard help?

Postby Peter_Frank » Tue Apr 15, 2014 2:43 pm

kitewise wrote:
Peter_Frank wrote:Chris is right - if you wear a rash guard outside your wetsuit, it will be colder.

I do it myself, but that is for safety only, so visible if you get "lost at sea".

Inside your suit it does not make any sense really, as the wetsuits (good ones) are designed so they have max warmth with the given small water or sweat layer inside...

8) Peter


Thanks......... I agree that it feels colder.
Now.... Does that mean that if one wears BOARDSPORTS outside or inside ones wetsuit that it will actually feel colder?
Phil


I assume you mean boardshorts ?

And yes, it is colder than without of course :rollgrin:

I use shorts if using a seat harness, to protect my suit - otherwise never.
But most often using a lycra, to avoid suit wear from the waist harness, to get rid of the zipper leash, and for safety reasons - eventhough it is a bit colder.

8) Peter


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