Here's something most guys figure out too late: the most useful piece in a summer wardrobe isn't a blazer, a printed shirt, or an expensive pair of trousers. It's a well-made black linen shirt. It handles heat without looking sloppy, transitions from daytime casual to evening sharp without a full outfit change, and pairs with practically everything you already own. The reason black works so well in linen specifically is contrast. Linen has a natural, slightly textured appearance that keeps black from looking too formal or too flat. The result is a shirt that reads relaxed during the day and polished at night, depending entirely on how you style it. That kind of flexibility is rare, and once you understand how to use it, you'll reach for this shirt constantly. Why Linen Works Better Than Cotton for All-Day Wear Most guys default to cotton shirts because that's what they know. Cotton is comfortable, but it traps heat and shows sweat more visibly as the day goes on. Li...