![Blue Plaid Long Sleeve Shirt with Brown Leather Casual Boots Smart Casual Winter Outfits For Men In Their 30s: This combination of a blue plaid long sleeve shirt and navy jeans is great for lazy days. Dial down the casualness of this outfit by rounding off with a pair of brown leather casual boots. During the colder months, when functionality is everything, it can be easy to surrender to a less-than-stylish ensemble in the name of functionality. This ensemble, however, is a good illustration that you can actually stay snug and remain stylish during the colder months. When it comes to dressing ideas for men in their 30s, this combination looks nice on almost anyone.](https://cdn.lookastic.com/looks/shearling-jacket-turtleneck-long-sleeve-shirt-large-39954.jpg)
![Brown Shearling Jacket](https://cdn.lookastic.com/brown-shearling-jacket-original-10165575.jpg)
![Black Turtleneck](https://cdn.lookastic.com/black-turtleneck-original-423198.jpg)
![Navy Plaid Long Sleeve Shirt](https://cdn.lookastic.com/navy-plaid-long-sleeve-shirt-original-359232.jpg)
![Navy Jeans](https://cdn.lookastic.com/navy-jeans-original-468486.jpg)
![Brown Leather Casual Boots](https://cdn.lookastic.com/brown-leather-casual-boots-original-11313182.jpg)
This combination of a blue plaid long sleeve shirt and navy jeans is great for lazy days. Dial down the casualness of this outfit by rounding off with a pair of brown leather casual boots. During the colder months, when functionality is everything, it can be easy to surrender to a less-than-stylish ensemble in the name of functionality. This ensemble, however, is a good illustration that you can actually stay snug and remain stylish during the colder months. When it comes to dressing ideas for men in their 30s, this combination looks nice on almost anyone.