For laid-back sophistication with a rugged take, consider teaming a navy crew-neck t-shirt with khaki dress pants. To infuse a sense of stylish casualness into this look, add a pair of boat shoes to your getup. If you're 30, take cues from combos like this to add more seriousness to your look.
Navy Crew-neck T-shirt with Boat Shoes Warm Weather Outfits In Their 30s
For a casual ensemble, try pairing a navy crew-neck t-shirt with white chinos — these pieces play beautifully together. Boat shoes look perfectly at home here. All in all, an ideal example of casual fashion for gents over 30.