This black tee from My Essential Wardrobe is a proper wardrobe hero, honestly. It's got that classic short-sleeve shape and a comfy crew neckline, making it dead easy to throw on for pretty much anything. What makes this one a bit different is that clever integrated belt. You can totally cinch it in to give yourself a nice waist, or just leave it a bit looser if you're going for a more laid-back vibe. It's spot on for pairing with everything from smart trousers for work to your favourite denim jeans when you're off-duty.