Bikini Top vs One-Piece Sizing: Key Differences to Know Before You Buy
Sizing a bikini top and sizing a one-piece swimsuit are two very different processes. Understanding the key differences will help you get the right fit first time — no guesswork needed.
Bikini Tops: Size to Your Bust
Bikini tops are primarily sized by bust measurement. Because tops and bottoms are sold separately at Franco Marine, you can mix sizes for a truly custom fit.
- Measure around the fullest part of your bust
- If you're between sizes, go up for more coverage or down for a snugger fit
- Triangle styles offer more flexibility; underwire styles require a more precise fit
One-Piece Swimsuits: Size to Your Torso
One-pieces require a more holistic approach — torso length matters as much as bust and hip measurements.
- Measure your torso from shoulder to crotch
- A too-short torso length will cause pulling and discomfort regardless of bust/hip fit
- When in doubt, size to your largest measurement and adjust straps
High-Waist Bikinis: Size to Your Hips
For high-waist styles, your hip measurement is the priority. The waistband should sit firmly without digging in.
- Measure around the fullest part of your hips
- High-waist bottoms from Franco Marine are designed to sit at the natural waist
Mix & Match for Your Best Fit
One of the advantages of buying separates is the ability to size independently. Browse our bikini tops and bikini bottoms to build your perfect combination. Explore complete sets in the Viva la Vida and Montferrat collections.