UV protected swim clothes

[jobyts]

http://www.alexandme.com/

sells uv protected swim clothes for a 4 times the price. All I could see is swim suits which are covering more body parts. Is the material different?

[mgb_phys]

Polyester/polyamide is better than cotton - don't know if you can add anything to make it even better

[S_Happens]

I've seen Quiksilver's UV tech stuff before. I can't find any serious info with a quick search. It simply refers to "UV tech super-stretchy nylon and spandex with SPF 50 rating..." so I'm not certain if it's proprietary or simply vague to make it seem like it's special technology.

I know my short sleeve spandexy (I'm not at the house otherwise I'd read the materials) rash guard that I bought 10 years ago left me with some serious farmers tan lines this summer when I wore it diving.

[FredGarvin]

The only thing I have seen is that polymers can have various UV stabilizers/absorbers mixed in. Possibly this is what they use in the polyester clothing.

[Pattonias]

I'm trying to think if I have ever gotten sunburn through any clothes that I have ever owned. Are these transparent or something?

[mgb_phys]

I'm trying to think if I have ever gotten sunburn through any clothes that I have ever owned. Are these transparent or something?

Thin white cotton has very little UV absoprtion, there is a concern that people could get sunburned because they stay out in the sun for longer because they feel cooler and are protected.