![White Dress Shirt with Navy Waistcoat Smart Casual Summer Outfits In Their 30s: We love how this pairing of a navy waistcoat and a white dress shirt immediately makes you look dapper and sophisticated. Totally summer-ready, you can wear a variation of this getup throughout the summer season. As a 30-year-old guy, you probably want to start dressing more like a mature gentleman. That's when inspiration like this proves very useful.](https://cdn.lookastic.com/looks/navy-waistcoat-white-and-red-dress-shirt-navy-jeans-large-1740.jpg)
![Navy Waistcoat](https://cdn.lookastic.com/navy-waistcoat-original-655758.jpg)
![White and Red Gingham Dress Shirt](https://cdn.lookastic.com/white-and-red-gingham-dress-shirt-original-3003323.jpg)
![Navy Jeans](https://cdn.lookastic.com/navy-jeans-original-468486.jpg)
![White and Red and Navy Vertical Striped Silk Tie](https://cdn.lookastic.com/white-and-red-and-navy-vertical-striped-silk-tie-original-3224965.jpg)
We love how this pairing of a navy waistcoat and a white dress shirt immediately makes you look dapper and sophisticated. Totally summer-ready, you can wear a variation of this getup throughout the summer season. As a 30-year-old guy, you probably want to start dressing more like a mature gentleman. That's when inspiration like this proves very useful.