![Black Slip-on Sneakers with Short Sleeve Shirt Smart Casual Summer Outfits For Men In Their 30s: This combo of a short sleeve shirt and blue jeans is hard proof that a pared down casual ensemble can still be really interesting. Introduce a pair of black slip-on sneakers to your outfit to tie your full ensemble together. You can't go wrong with this one on a hot weather afternoon. So if you need style ideas on what to wear as you step into your 30s, this getup is a wonderful example.](https://cdn.lookastic.com/looks/double-breasted-blazer-short-sleeve-shirt-jeans-large-56056.jpg)
![Black Double Breasted Blazer](https://cdn.lookastic.com/black-double-breasted-blazer-original-2635827.jpg)
![White Short Sleeve Shirt](https://cdn.lookastic.com/white-short-sleeve-shirt-original-365670.jpg)
![Blue Jeans](https://cdn.lookastic.com/blue-jeans-original-468792.jpg)
![Black Leather Slip-on Sneakers](https://cdn.lookastic.com/black-leather-slip-on-sneakers-original-9744613.jpg)
![White Pocket Square](https://cdn.lookastic.com/white-pocket-square-original-568548.jpg)
![Black Sunglasses](https://cdn.lookastic.com/black-sunglasses-original-9639748.jpg)
This combo of a short sleeve shirt and blue jeans is hard proof that a pared down casual ensemble can still be really interesting. Introduce a pair of black slip-on sneakers to your outfit to tie your full ensemble together. You can't go wrong with this one on a hot weather afternoon. So if you need style ideas on what to wear as you step into your 30s, this getup is a wonderful example.