An Old-School Shirt
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"In spring I like to go simple and old-school when it comes to the shirts I put with suits – solid white or blue or classic stripes with a solid tie," says designer Michael Bastian. A cotton and linen blend dress shirt is the all-around best shirt to wear with a suit for spring according to Bastian. "This gives you the best of both worlds. It's also on trend: I've been seeing it all over the fabric shows and you're going to see a lot of it in the coming seasons."

We recommend a spread collar – it allows for maximum visibility of the tie – and, as designer Todd Snyder points out, no one wants to have a bunch of material around their neck when it's warm out. Come spring, less is more – with one rather major exception. That exception is the undershirt. Wear one. It will help prevent unsightly sweat stains and shirt damaging build ups of antiperspirant.