![Black Low Top Sneakers with Waistcoat Smart Casual Summer Outfits In Their 30s: For an effortlessly smart look, try teaming a waistcoat with yellow jeans — these two pieces work beautifully together. Have some fun with things and add black low top sneakers to the mix. A great summer pick, you can work this getup throughout the summertime. Wondering what you should wear as you pass the big three-oh? This combo is the perfect answer.](https://cdn.lookastic.com/looks/grey-waistcoat-white-long-sleeve-shirt-yellow-jeans-large-579.jpg)
![Grey Plaid Waistcoat](https://cdn.lookastic.com/grey-plaid-waistcoat-original-659724.jpg)
![White Long Sleeve Shirt](https://cdn.lookastic.com/white-long-sleeve-shirt-original-360468.jpg)
![Yellow Jeans](https://cdn.lookastic.com/yellow-jeans-original-471240.jpg)
![Black Leather Low Top Sneakers](https://cdn.lookastic.com/black-leather-low-top-sneakers-original-542610.jpg)
For an effortlessly smart look, try teaming a waistcoat with yellow jeans — these two pieces work beautifully together. Have some fun with things and add black low top sneakers to the mix. A great summer pick, you can work this getup throughout the summertime. Wondering what you should wear as you pass the big three-oh? This combo is the perfect answer.