A white and black crew-neck sweater and sweatpants worn together are a sartorial dream for those who prefer laid-back and cool combinations. And if you need to immediately spruce up this look with footwear, complement this ensemble with a pair of black leather chelsea boots. The start of real winter needn't mean you sacrifice on style, and this outfit is hard proof just that. If you're in your 30s, take cues from ensembles like this to take a more serious approach to your personal style.