Going through life can be a wonderful adventure! We do can anything with class, our own styles, and flair -- even while tromping through underbrush. (And do it so well!)
Perhaps, the greatest crime in fashion (as in so many other facets of life) is trying to be someone else. Regardless of how wonderful something looks on this person or that, it may look much better on him or her than you.
You're comfortable with an article of clothing if you reach for it after stepping out from the shower. Your significant other is comfortable with it on you if (s)he reaches for you more often than not when you wear it. What else is there to say?

These are some of my favorite threads:
My fav: Ermenegildo Zegna
Number two: Georgio Armani
The clothes that are used in this line are astounding.
Often, the comment is, "Cotton? That's really cotton, not silk?"
Comfortable wear: the fashion lines of Emmanuel Ungaro
Non-itching wool patterned slacks, very easy to maintain, very wrinkle-free.
The European Standby: Boss
One stop New York style browsing 7th on Sixth

For either gender:
Upscale fashion previews from the people at First View

For the other gender:
Donna Karan