For a laid-back ensemble, consider wearing a tan zip sweater and a long sleeve shirt — these pieces fit perfectly well together. If you're wondering how to finish off, a pair of grey suede desert boots is a never-failing option. Keep this look in your head when spring arrives, and we promise you'll save a lot of time getting dressed on more than one morning. When it comes to casual fashion tips for mature gentlemen, this combination looks great on almost any gent.