Favourite piece of clothing

So, what's your favourite piece of clothing?

Mine is a hooded sweatshirt that I bought in La Paloma, Uruguay in 2005. I don't wear it very often but I really like it. It's pastel green and beige and it was very cheap because it a little mark on it so it didn't look 100% new. I tend to wear it in the Summer, especially when I'm at the beach. I guess I like it because it's casual wear that's very comfortable. I usually wear it with a pair of shorts and some alpargatas - very hippie!!

I will post a photo of the sweatshirt later.

What about you? What's your favourite piece of clothing?