A tobacco turtleneck and navy jeans are essential in any guy's great casual sartorial arsenal. Introduce white canvas low top sneakers to this ensemble and the whole ensemble will come together really well. Relaxed combinations for stylish 30-something Millennial gentlemen aren't actually that hard, as you can see here.
Tobacco Turtleneck with White Canvas Low Top Sneakers Casual Outfits For Men In Their 30s
Consider wearing a tobacco turtleneck and black chinos for an everyday look that's full of style and character. Finish this ensemble with a pair of white canvas low top sneakers to spice things up. This pairing should clear any doubts you had about dressing casually over 30.