![Olive Flannel Shirt Jacket with Navy Jeans Smart Casual Outfits For Men In Their 30s: An olive flannel shirt jacket and navy jeans are among the key pieces in any modern gentleman's well-balanced casual sartorial collection. If you're hesitant about how to finish, introduce a pair of dark brown leather casual boots to the equation. If you're not sure how to dress age-appropriately while looking fashionable, this combination is a tested option.](https://cdn.lookastic.com/looks/shirt-jacket-long-sleeve-shirt-jeans-large-90378.jpg)
![Olive Flannel Shirt Jacket](https://cdn.lookastic.com/olive-flannel-shirt-jacket-original-11498105.jpg)
![Light Blue Chambray Long Sleeve Shirt](https://cdn.lookastic.com/light-blue-chambray-long-sleeve-shirt-original-2899412.jpg)
![Navy Jeans](https://cdn.lookastic.com/navy-jeans-original-468486.jpg)
![Dark Brown Leather Casual Boots](https://cdn.lookastic.com/dark-brown-leather-casual-boots-original-11313214.jpg)
![Brown Canvas Backpack](https://cdn.lookastic.com/brown-canvas-backpack-original-8068487.jpg)
![Tobacco Leather Belt](https://cdn.lookastic.com/tobacco-leather-belt-original-2316543.jpg)
An olive flannel shirt jacket and navy jeans are among the key pieces in any modern gentleman's well-balanced casual sartorial collection. If you're hesitant about how to finish, introduce a pair of dark brown leather casual boots to the equation. If you're not sure how to dress age-appropriately while looking fashionable, this combination is a tested option.