Flaunt that you know a thing or two about men's style in a navy sweatshirt and light blue jeans. Give a more informal twist to this outfit by slipping into a pair of grey print canvas high top sneakers. As the weather starts getting warmer, it's time to get rid of those heavy winter clothes and opt for a look that's lighter, like this one here. And if we're talking casual fashion for 30-something gents, this ensemble looks great on almost anyone.