Tstop4me, I know you are just having fun at my expense. But I assume anyone allergic to cold probably realized long ago they should stay away from winter sports. Likewise, I know someone with a heat allergy, specifically Rosacea, who doesn't soak in hot tubs.
OTOH, allergies to the fabrics in clothing (and to detergents, fragrances, whiteners, softeners, etc.) are very common. E.g., wool makes me itch, and turned out, along with Tide detergent, to be the main reason for the acne that I lived with for most of my life. (I do not have an obvious physical reaction to wearing wool suits - maybe because it is treated in way that make it softer and less abrasive.) It took me a long time to realize that - dermatologists were no help, they kept treating me with antibiotics like tetracycline that were completely ineffective - for me. If you have a skin problem, sometimes you have to figure the causes out for yourself.
I know a fair number of other people who eventually developed reactions to fabrics or the chemicals used to clean and treat them, after repeated exposure. E.g., I wonder if boot makers are ever asked not to use "chrome tanned leather", the most common type, for that reason.
But if I liked the way a particular material felt against my skin, and it created no adverse reactions, I would use it, no matter what someone else said. Alba asks a lot of questions about these things, no doubt hoping not to waste money on expensive boots and blades, but some of them really do come down to personal preference.