A raincoat and a navy blazer are absolute must-haves if you're putting together a polished closet that holds to the highest style standards. Rounding off with a pair of grey athletic shoes is a fail-safe way to add a more relaxed twist to your look. As you can see here, this combination is a really good option, especially for unpredictable fall weather, when the temperature is starting to drop. And if we're talking casual fashion for 20-something gentlemen, this combo suits almost any gent.