![Three Piece Suit with Derby Shoes Smart Casual Outfits In Their 30s: A three piece suit and a white crew-neck t-shirt worn together are the perfect combo for guys who prefer casually smart styles. You could perhaps get a bit experimental when it comes to footwear and make derby shoes your footwear choice. This combo looks great on 30-something guys.](https://cdn.lookastic.com/looks/black-three-piece-suit-white-crew-neck-t-shirt-black-leather-derby-shoes-large-17925.jpg)
![Black Three Piece Suit](https://cdn.lookastic.com/black-three-piece-suit-original-9790002.jpg)
![White Crew-neck T-shirt](https://cdn.lookastic.com/white-crew-neck-t-shirt-original-386478.jpg)
![Black Leather Derby Shoes](https://cdn.lookastic.com/black-leather-derby-shoes-original-2410503.jpg)
A three piece suit and a white crew-neck t-shirt worn together are the perfect combo for guys who prefer casually smart styles. You could perhaps get a bit experimental when it comes to footwear and make derby shoes your footwear choice. This combo looks great on 30-something guys.