I have seen someone wear a HD800 in public as well - so anything is possible with enough courage
HD800 looks so stylish, but I would be worried to take it out unless it's perfectly dry outside and the temperature is no greater than 25 C nor lower than 5C. Albeit HD800S works from -10 to 55 if we follow their manual C
I think we baby these headphones too much, my old GF used to use her HD700 almost every day when she was walking our dog and it still looked brand new after 2 years of this daily use.