Combining a navy double breasted blazer and a yellow argyle sweater vest is a fail-safe way to inject your styling lineup with some masculine sophistication. Rock a pair of black suede desert boots to make a mostly dressed-up look feel suddenly fresh. As you can see here, this outfit is a really nice idea, especially for in-between weather, when the temperature is dropping. Wondering what to wear as you slip into your 30s? This outfit is a good illustration.