This casual combo of a white crew-neck t-shirt and light blue jeans is simple, seriously stylish and very easy to imitate. To give your overall getup a more laid-back twist, why not add a pair of white and blue athletic shoes to the equation? Keep this combination in your front hall closet when spring arrives, and we guarantee you'll save time crafting what to wear on more than one morning. When it comes to casual fashion tips for 20-something gentlemen, this look is perfect.