![Blue Shirt Jacket with Dark Brown Leather Derby Shoes Smart Casual Summer Outfits In Their 30s: A blue shirt jacket and white shorts? It's easily a wearable outfit that anyone can work on a daily basis. Finishing with a pair of dark brown leather derby shoes is a guaranteed way to bring a little zing to your outfit. Come extremely hot summer days you want to feel cool and seriously stylish –– this look is just the one you need. As you step into your 30s, you want to start dressing like a grown-up. That's when inspiration like this comes in useful.](https://cdn.lookastic.com/looks/shirt-jacket-long-sleeve-shirt-shorts-large-86232.jpg)
![Navy Shirt Jacket](https://cdn.lookastic.com/navy-shirt-jacket-original-11480797.jpg)
![Blue Chambray Long Sleeve Shirt](https://cdn.lookastic.com/blue-chambray-long-sleeve-shirt-original-359370.jpg)
![White Shorts](https://cdn.lookastic.com/white-shorts-original-485316.jpg)
![Dark Brown Leather Derby Shoes](https://cdn.lookastic.com/dark-brown-leather-derby-shoes-original-8629903.jpg)
![Dark Brown Leather Tote Bag](https://cdn.lookastic.com/dark-brown-leather-tote-bag-original-8625952.jpg)
![Grey Sunglasses](https://cdn.lookastic.com/grey-sunglasses-original-9639756.jpg)
A blue shirt jacket and white shorts? It's easily a wearable outfit that anyone can work on a daily basis. Finishing with a pair of dark brown leather derby shoes is a guaranteed way to bring a little zing to your outfit. Come extremely hot summer days you want to feel cool and seriously stylish –– this look is just the one you need. As you step into your 30s, you want to start dressing like a grown-up. That's when inspiration like this comes in useful.