Different sizes for top and bottom is fine.

Yes. Most women are not the same size on top and bottom. Swimwear brands that sell separates exist precisely for this reason.

If you’re buying a set that only comes as a single size, you’ll either have to buy two sets and mix-match, or stick to brands that sell tops and bottoms individually. That’s not a hassle—it’s a reality. Measure your bust and hips separately, then order the size that fits each. Ignore the label number.

The only catch: some brands design their tops and bottoms to coordinate only within the same size range. If your top is a small and your bottom is an extra large, the patterns or color blocks might not align perfectly. But nobody is staring that closely on the beach.

Your body doesn’t come in one size, so your swimsuit shouldn’t either.