![Red Houndstooth Shirt Jacket with Beige Suede Derby Shoes Smart Casual Outfits In Their 30s: Perfect the cool and casual look by opting for a red houndstooth shirt jacket and grey jeans. Complement this outfit with a pair of beige suede derby shoes to instantly shake up the outfit. As a guy in his thirties, you want to start dressing like an adult man. That's when inspo like this is very useful.](https://cdn.lookastic.com/looks/shirt-jacket-crew-neck-t-shirt-jeans-large-38715.jpg)
![Red Houndstooth Shirt Jacket](https://cdn.lookastic.com/red-houndstooth-shirt-jacket-original-11530638.jpg)
![Black Crew-neck T-shirt](https://cdn.lookastic.com/black-crew-neck-t-shirt-original-386784.jpg)
![Grey Jeans](https://cdn.lookastic.com/grey-jeans-original-472464.jpg)
![Beige Suede Derby Shoes](https://cdn.lookastic.com/beige-suede-derby-shoes-original-2414085.jpg)
![Brown Leather Watch](https://cdn.lookastic.com/brown-leather-watch-original-9558336.jpg)
Perfect the cool and casual look by opting for a red houndstooth shirt jacket and grey jeans. Complement this outfit with a pair of beige suede derby shoes to instantly shake up the outfit. As a guy in his thirties, you want to start dressing like an adult man. That's when inspo like this is very useful.