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How to choose your swimsuit size: complete guide

May 14, 2026
Home Blog How to choose your swimsuit size: complete guide
Comment choisir la taille de son maillot de bain : guide complet

Our tips for choosing the right swimsuit size

Choosing the right swimsuit size is essential to feel comfortable and fully enjoy your time at the beach or pool. A well-fitting swimsuit enhances your figure, provides good support, and prevents discomfort. This article aims to guide you step by step to find the perfect size for your swimsuit.

Understanding swimsuit sizes

International sizing systems

When choosing a swimsuit, it's important to understand that sizing systems vary from country to country.

Each brand of swimwear may also have its own size variations. This means that your usual size may not perfectly match from one brand to another. For example, a size 38 swimsuit from one brand could be slightly smaller or larger from another.

Rest assured, each brand has its own guide that takes into account the specific cut and materials used by the brand.

At Lingerie Emma, our swimsuits work by cup depth, exactly like a bra size.

Essential swimsuit measurements

To choose the ideal size for your swimsuit, it's important to take precise measurements. Here are the main measurements to take:

1. Bust measurement

Use a flexible measuring tape to measure the widest part of your bust.
Make sure the tape is horizontal and not too tight.

For accurate results, wear an unpadded bra (avoid push-ups, as they can distort measurements).

2. Waist measurement

Measure around the narrowest part of your waist, usually at your belly button. The tape should be snug, but not too tight, to ensure your comfort.

3. Hip measurement

Measure around the widest part of your hips, usually at your buttocks. Again, the tape should be parallel to the floor and not too tight to ensure a good fit.

4. Torso circumference measurement

For a one-piece swimsuit, the torso circumference measurement is crucial. Wrap the measuring tape around your body, passing from front to back, from the crotch to the shoulder, including the bust. This measurement takes into account the length and width of your body.

Body types and swimsuit types

Every body is unique, and choosing a swimsuit that suits your body type can make all the difference in terms of comfort and enhancing your figure.

Here's an explanation of the main body types and the recommended swimsuit types for each.

A-shape body (pear)

    • Description: Shoulders narrower than hips.
    • Recommended swimsuits: Opt for swimsuit tops with details, ruffles, or patterns to draw attention to the upper body. High-cut or solid-colored, dark swimsuit bottoms can balance the silhouette.

Monterey Tropical Beach House Tankini Top

The Monterey Tropical Beach House Tankini Top features tiered ruffles that add dimension to the front and a bold floral pattern. It has a built-in bra with soft cups and adjustable straps.

V-shape body (inverted triangle)

    • Description: Shoulders wider than hips.
    • Recommended swimsuits: Choose swimsuit bottoms with details, ruffles, or patterns to add volume to the hips. Swimsuit tops with thin straps or plunging necklines help soften the shoulders.

Selmark Polinesia Swimsuit Top

The Selmark Polinesia Swimsuit Top has a triangle design and thin adjustable straps. It is designed without underwire and features a beautiful, vibrant print.

H-shape body (rectangle)

    • Description: Shoulders, waist, and hips of similar width.
    • Recommended swimsuits: One-piece swimsuits with cutouts or waist belts create the illusion of curves. Bikinis with patterned or textured tops and bottoms add volume and define the silhouette.

Sea Level Daisyfield One-Piece Swimsuit

The Sea Level Daisyfield One-Piece Swimsuit has a chic retro silhouette that is slightly slimming at the waist and a botanical print. It has removable soft cups and adjustable convertible straps.

O-shape body (oval)

    • Description: Waist wider than shoulders and hips.
    • Recommended swimsuits: One-piece swimsuits with ruching or shaping fabrics help to smooth and refine the silhouette. V-necklines and vertical details can lengthen the torso.

Cyell Holiday One-Piece Swimsuit

The Cyell Holiday One-Piece Swimsuit features a wrap detail for a corrective fit and a hidden band under the bust for excellent support. It is lined and designed with a deep V-neckline.

X-shape body (hourglass)

    • Description: Shoulders and hips of similar width with a well-defined waist.
    • Recommended swimsuits: Most swimsuit styles suit this body type. Fitted one-piece swimsuits and high-waisted bikinis highlight the waist and natural curves. Note that all women can wear a bikini, regardless of their figure. You just need to pair it with the right swimsuit bottom.

Cyell Dash Stripe One-Piece Swimsuit

The Cyell Dash Stripe One-Piece Swimsuit is made with pre-formed cups in a shiny structured fabric. It can be worn in several ways: strapless or with crossed straps at the back as well as a halter neck.

How to check the fit of your swimsuit

  • Try on the swimsuit: When you try on a swimsuit, it should be snug without being restrictive. It should hug your body without creating red marks or wrinkles.
  • Check the seams: The seams should not dig into your skin. If they leave marks, the swimsuit is probably too tight.
  • Test movements: Move around, raise your arms, sit down, and bend over. The swimsuit should stay in place without shifting or deforming. Make sure it provides good coverage and support during these movements.

Signs of a loose swimsuit

  • Wrinkled or bunched fabric: If the fabric is wrinkled or bunched, it's a sign that the swimsuit is too big.
  • Slippage: If the swimsuit slips when you move, it's probably too loose and won't provide the necessary support.

Choosing your swimsuit size: in summary

To choose the right swimsuit size, it is essential to take precise measurements. Opt for a style adapted to your body type and make sure it is comfortable and well-fitting.

Take your time to consult brand size guides to find the ideal size. If in doubt, do not hesitate to ask us your questions or make an appointment with the team to ensure you make the right choice.

Want to continue reading? These articles might interest you:

  • Our Favorite Women's Vacation Clothes
  • A Deep Dive into Eco-Responsible Women's Swimwear
  • Care for Your Swimsuits in 5 Easy Steps!
  • A High-End Swimsuit with PrimaDonna

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