Why not go for a white crew-neck t-shirt and a dark green polo? Both of these pieces are totally comfortable and look awesome matched together. You could perhaps get a little creative in the footwear department and add a pair of beige suede desert boots to the mix. As a man in his thirties, you're sure to appreciate this combo.
White Crew-neck T-shirt with Dark Green Polo Smart Casual Chill Weather Outfits For Men In Their 30s
Combining a white crew-neck t-shirt with a dark green polo is a great option for a laid-back look. Make this getup a bit classier by finishing with dark brown suede derby shoes. So if you're looking for a nice and age-appropriate ensemble, this one fits the task well.