Shoes or sneakers?

Which do you prefer to wear when you go out?
I prefer sneakers or beach/sports sandals every day. But for work, or for going out for a nice dinner, I like to get dressed up and wear some stylish shoes. But for me, buying sneaks/shoes on Japan is not so easy. It is really difficult to find my size, and 29 centimeters, a size 11 in Amercia. In Japan, 27.5 centimeters is usually the max. So, I usually buy my footwear when go back to the States for a vacation. I almost always buy New Balance sneaks, because I have a wide foot, and New Balance specializes in wide sizes.
What size sneak do you wear?
What kind of shoes do you like to wear? When you go out? At work?