In reply to nutme:
Sorry you're right, I mean sunny not hot, the picture looking like Kalymnos (Greece, Sea level) sent me straight to that word. Besides, who's only wearing that hoody at -20? Im sure your insultation on a mountain is providing much more protection anyway.
Okay so lets get off the mountain, so if a cotton T-shirt is 25 upf which blocks 96% of the sun, and 50 upf hoody sold by OR blocks 98% of the sun, who gives a shit?
Post edited at 17:38