Two swimsuits are trending right now, plus they answer the only question that matters in this category: bikini or one piece. One is a designer bikini top you build a set around. The other is a complete one piece you buy once and wear all season.
They cost roughly $84 and $125. Below is what separates them beyond the shape.
How We Picked These Products
These two are the designer swimsuits trending on Amazon as of August 2026, with prices and stock verified against the Amazon Creators API on the day this published.
With two products the useful comparison is not which is better but which problem you have. The Peixoto is a top sold on its own, so the $84 is half a swimsuit: add a bottom and the full set costs more than the complete one piece. That is the single most important thing to know before comparing these two prices. It is also the thing separates listings never say plainly.
We do not have verified review counts for these products, so no star ratings appear on the cards below.
1. Beach Riot Women's Stassia One Piece
Beach Riot Women's Stassia One Piece Swimsuit
Best for: Buying swimwear once and not thinking about it
The simplest decision here, plus the right call if you swim properly rather than lounge.
A complete one piece from a brand built around swim and activewear. The advantage of a one piece is simple and often overlooked: it is one purchase, one size decision, plus nothing to match.
At around $125 it costs more than the bikini top on its own, though a top and a bottom together will usually cost more than this. One pieces are also less convenient for sunbathing plus for bathrooms.
Who it is for: anyone who wants to buy swimwear once and stop thinking about it. Also the better choice for swimming properly rather than sitting by a pool.
2. Peixoto Women's Emmy Bikini Top
Peixoto Women's Emmy Bikini Top, Bandana Dandy
Best for: Anyone who sizes differently top and bottom
Right if your sizes differ. Budget for the bottom before comparing this price against a one piece.
A designer bikini top sold separately, which is how most swim brands now sell. Separates solve a real fit problem, since a great many people are not the same size on top and bottom, plus a matched set forces one compromise.
Around $84 is for the top alone. Add a bottom and the full set costs considerably more than the one piece above.
Who it is for: anyone who sizes differently top and bottom, or who wants to rotate several bottoms with one good top. Budget for the second piece before comparing prices.
How to Choose a Swimsuit
Separates cost more than they look. A top at $84 is half a swimsuit. Compare a full set against a one piece rather than comparing the top price against it.
Buy separates if you size differently. This is the main argument for them, plus it is a strong one. A matched set forces you to pick which half fits properly.
Choose a one piece if you actually swim. Bikinis are built for sitting by water. If you are doing lengths or bodysurfing, a one piece stays where it should.
Check the lining and thickness before ordering. Light colours and thin fabric become see-through when wet. Reviews mention this more reliably than product descriptions do.
Rinse in fresh water after every wear. Chlorine and salt both break down elastane. A cold rinse plus drying flat out of direct sun roughly doubles how long a suit holds its shape.
Frequently Asked Questions
How should swimwear fit when you try it on dry?
Snug, because most swim fabric relaxes slightly when wet. Straps should not dig in, plus you should be able to raise your arms fully without the suit riding up. If it feels loose dry, it will be loose in the water.
Is it worth paying designer prices for swimwear?
The difference is mostly in fabric weight and lining. Heavier fabric holds shape, resists going sheer when wet, plus survives more chlorine before losing elasticity. Whether that justifies the price depends on how many days a year you actually swim.
How long does a swimsuit last?
With regular pool use, roughly one to two seasons before the elastic goes. Rinsing after each wear, avoiding hot tubs, plus never wringing it out extends that noticeably. Rotating two suits lasts far longer than wearing one twice as often.
The Short Version
If you want the simplest decision, the Beach Riot Stassia one piece at around $125 is a complete suit with nothing to match, plus it is the better choice for swimming rather than lounging.
If your top and bottom sizes differ, the Peixoto Emmy top at around $84 is the way to build a set that genuinely fits. Just budget for the bottom before you compare the two prices.