Feel free to add to the list.
1. Clothes that don't fit
2. CARGO SHORTS
3. Flip flops (unless you're at the beach, at the pool, or in a public shower).
4. Clothing with logos or "artistic" designs.
5. Running shoes (unless you're running).
6. Fedora (trust me, you can't pull it off).
7. Sports jerseys (unless you are watching or playing sports).
8. White socks that show.
9. Sweatpants and sweatshirts
10. Blazers and jackets without a vent
11. Bulky jackets
12. Basketball shorts (unless you're playing basketball).
13. Speedos
14. Button down short sleeve shirts (particularly with a tie).
15. Extra large letsrun t-shirts (if they existed).