A cover-up is the piece that gets you from the water to lunch. This edit gathers kaftans, sarongs, crochet dresses, mesh and chiffon layers, and open-knit pieces designed to go over swimwear without hiding it. Some are genuinely sheer and read as styling rather than coverage; others are opaque enough to wear on their own with sandals. Crochet and open-knit styles work best over a solid-colour swimsuit, since anything busy underneath shows through the gaps. Lengths run from hip-skimming to full maxi. Most cover-ups are cut generously and don't need close sizing — if you want a looser, more fluid drape, take your usual size rather than the smaller one.