in park not so much, but in pow ya, that would be redic.
I've never actually worn them under my coat, I just wear what is comfortable and stuff.
and ya a 5XL tall tee is fucking massive. I bought a 4XL one at champs cause I was bored and had my moms credit card, and I can't wear it anywhere. It's about down to my ankles, and I'm 5'10