For something more on the casual end, consider this combo of a denim shirt and khaki chinos. Add a pair of navy suede tassel loafers to the mix to effortlessly ramp up the fashion factor of your outfit. Rock this getup to showcase your maturity as a gentleman in his thirties.
Khaki Chinos with Denim Shirt Smart Casual Warm Weather Outfits In Their 30s
Pairing a denim shirt with khaki chinos is a good option for a casual but seriously stylish look. For extra style points, introduce a pair of brown suede casual boots to your look. So if you're in search of a stylish and mature pairing, this one is great.