A light blue chambray long sleeve shirt and white chinos are indispensable menswear essentials if you're putting together a casual wardrobe that holds to the highest fashion standards. If you want to instantly dress down your look with one piece, complete this outfit with navy canvas low top sneakers. So so as you can see, it's a dapper, not to mention season-appropriate, ensemble to have in your transitional rotation. And if we're talking casual fashion tips for 30-something Millennial gents, this ensemble looks good on almost any gentleman.