For an outfit that's casually smart and GQ-worthy, consider teaming a black shearling jacket with a tan wool turtleneck. Complement this outfit with black leather casual boots and off you go looking boss. A safe bet for gentlemen over 30 on a mission for a more professional image.
Black Shearling Jacket with Tan Wool Turtleneck Smart Casual Cold Weather Outfits For Men In Their 30s
Demonstrate that no-one does casual like you by wearing a black shearling jacket and a tan wool turtleneck. For maximum fashion points, complement this ensemble with black leather casual boots. As you turn 30, you probably want to start dressing maturely. If that's the case, looks like this are perfect as inspiration.