For an effortlessly sleek ensemble, consider wearing a grey plaid wool suit and a burgundy knit wool turtleneck — these two items work really well together. A pair of black leather brogues easily amps up the classy factor of any look. Seeing as it is getting chillier with each day, this outfit appears a viable choice for the time in between seasons. As a man in his 30s, you probably want to start dressing maturely. That's when outfits like this are a real life saver.