01
One-Piece Swimwear
Designed for a close, secure fit through the torso. Chest, waist, hips, and torso length can all affect how a one-piece sits.
If you're between sizes, compare the product measurements closely before choosing.
SHOP ONE-PIECEFIT GUIDE
Find your best fit.
Swimwear should feel secure, comfortable, and made to move with you. Start with your body measurements, then compare them with the product-specific sizing details for the silhouette you're shopping.
Because fabric, stretch, and construction vary by style, always review the final measurements on the product page before ordering.
HOW TO MEASURE
Measure with care.
Use a flexible measuring tape, keep it level, and measure close to the body without pulling too tightly.
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01 — CHEST
Measure around the fullest part of your chest, keeping the tape level across your back and under your arms.
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02 — WAIST
Measure around the narrowest part of your natural waist.
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03 — HIPS
Stand with your feet together and measure around the fullest part of your hips and seat.
For the most accurate result, measure over lightweight clothing or undergarments.
FIT BY SILHOUETTE
Choose your shape.
02
String Bikinis
Adjustable ties provide more flexibility through the top and hips, making this silhouette easier to personalize to your preferred fit.
Use your chest and hip measurements as your starting point, then adjust the ties for comfort and coverage.
SHOP STRING BIKINIS03
High-Waisted Bikinis
Designed to sit higher through the waist with more coverage through the bottom. Waist and hip measurements are especially important for this silhouette.
Choose the size that gives you a secure waistband without excessive compression.
SHOP HIGH-WAISTEDBEFORE YOU ORDER
Check the final product measurements.
Fit can vary slightly by fabric, stretch, and silhouette. Before completing your order, review the size guide on the product page for the most current product-specific measurements.
Swim BASI checkout is completed securely through Printful, where final sizing and availability are confirmed.