If you use a more casual approach to styling, why not wear a navy blazer with a dark green long sleeve t-shirt? If you want to easily dress down this ensemble with a pair of shoes, complement this ensemble with white leather low top sneakers.
Dark Green Long Sleeve T-Shirt with Navy Blazer Outfits For Men
This laid-back pairing of a navy blazer and a dark green long sleeve t-shirt is perfect when you need to look dapper but have no time. A cool pair of navy leather tassel loafers is an easy way to power up this getup.
As you can see here, it doesn't take that much effort for a man to look dapper. Just pair a navy blazer with a dark green long sleeve t-shirt and you'll look incredibly stylish.