When we say one-piece wonder, we mean it. A bodysuit slims, defines your curves, and never adds bulk under your hip-hugging denim, skirts, or trousers. The bodysuit had a major moment in the '90s, but we're newly obsessed with the undergarment-cum-wardrobe staple — and you will be, too. In understated silhouettes, or dressed up with underwire, lace, and cutouts, a bodysuit should be worn just like any other top; its benefit comes when you want a sleek, smooth silhouette without bunching, gathering, or slouchiness. The only thing to remember is that you want a bodysuit with a snap crotch — form and function should work together here! If you've ever feared the one-piece, here's a way to conquer those fears: we styled chic, wearable looks for five different occasions. Click to see.