Aerie Crinkle Voop Binding Bikini Top vs Prow Swim by Pepper Scoop Underwire Bikini Top

The Aerie uses S–XL sizing, which means if your band and cup don't map neatly onto a generic size, you're guessing. The Pepper uses real bra sizing with 30–40 bands and AA–B cups, which is the difference between a top that fits and a top that fits you. For small-busted women who've always felt like an afterthought in swimwear, this is the whole ballgame.

The Aerie creates its push-up effect through the Voop neckline geometry — a clever cut that pushes cups together to create cleavage. It works, but it's a visual trick. The Pepper uses actual underwire to physically lift and support, which means the effect holds up when you're in the water, running on the beach, or moving around. If you're just lounging poolside, Aerie is fine. If you're actually active, Pepper's structure wins.

The Aerie tops out around $50; the Pepper can hit $175. That's a significant difference, but the Pepper is also doing something the Aerie genuinely cannot — it's a precision-fit garment designed for a body type that the swimwear industry routinely ignores. If you're a standard size, the Aerie is a great deal. If you're a 32AA who's never found a top that fits, the Pepper at $175 is still cheaper than the five failed $50 tops you've already bought.

The Pepper's one real weakness is that the cups and underwire can become misshapen after washing, which is a frustrating flaw at this price point. The Aerie's crinkle texture is forgiving and the removable padding means the shell itself is more wash-resilient. Neither is a forever top, but paying $150+ for something that warps in the wash stings more than a $40 top doing the same.