![Navy Waistcoat with Beige Dress Pants Smart Casual Outfits In Their 30s: This pairing of a navy waistcoat and beige dress pants is a fail-safe option when you need to look truly sharp. A pair of white low top sneakers instantly dials up the street cred of this outfit. As a man in his 30s, you want to start dressing like an adult. If that's the case, inspiration like this comes in very handy.](https://cdn.lookastic.com/looks/navy-waistcoat-white-crew-neck-t-shirt-beige-dress-pants-large-11886.jpg)
![Navy Cotton Waistcoat](https://cdn.lookastic.com/navy-cotton-waistcoat-original-10111604.jpg)
![White Crew-neck T-shirt](https://cdn.lookastic.com/white-crew-neck-t-shirt-original-386478.jpg)
![Beige Dress Pants](https://cdn.lookastic.com/beige-dress-pants-original-1866021.jpg)
![White Low Top Sneakers](https://cdn.lookastic.com/white-low-top-sneakers-original-542538.jpg)
This pairing of a navy waistcoat and beige dress pants is a fail-safe option when you need to look truly sharp. A pair of white low top sneakers instantly dials up the street cred of this outfit. As a man in his 30s, you want to start dressing like an adult. If that's the case, inspiration like this comes in very handy.