I'm the best article of clothing ever invented...
You see me everywhere in various colors, though there's one I prefer
I'm great with the right ensemble for accompanying you to a nice restaurant
Or mucking around in the yard or going camping
I seem to be comfortable whether it's hot or cold,
outside or inside just lounging around after a long day's work
I always look great whether freshly washed or two days old from the bottom of the suitcase
And I pride myself on lasting nearly forever if you buy me in my favorite brand.
What am I?