Every body is unique — just like our styles. To help you feel completely at ease in your MYMARINI swimwear, we’ve gathered all the information you need here to find the right size and the ideal fit. Whether you’re looking for more coverage or a sleek silhouette, our fit guide offers you gentle orientation — no rules, just suggestions. It combines aesthetics and functionality — for great comfort and excellent style.

Our styles are as individual as you are. That’s why we recommend:

• Measuring your bust, waist, and hips with a measuring tape — directly on your skin.
• Comparing your measurements with our size chart. You’ll also find helpful notes on fit and sizing.
• Checking the size dropdown on each product page — we share specific recommendations for cut and fit there.

For the best fit, measure your waist, hips, etc. directly against your skin and compare your measurement with our size chart. If your waist measurement falls between sizes, consider how close or relaxed you prefer the fit to be.

Our sizes align with your regular clothing size, but your size is not a fixed number — it’s what feels right to you and your body. Keep in mind: swimwear should feel like a second skin to provide the best support in the water. Whether your hips are narrow or curvier, our cuts have plenty of stretch and are designed to adapt without pressure or digging in. Each MYMARINI piece is designed to gently follow the natural shape of your body while still offering reliable support.

That’s completely normal — every body is different, and generally speaking, regular, standardized sizes don’t always correspond to reality. Our tips:

• Prefer a sporty close fit? Try the smaller size.
• Want a more relaxed feel, for example if you want to wear your MYMARINI bikini as an everyday top? Opt for the larger size. "Relaxed" doesn’t mean "loose" — our cuts are still designed to support and flatter.
• No matter what, our materials are flexible; they’ll stretch and adapt to your body.

Still deciding between two sizes? Consider your height. For example, if you’re choosing between size S and M and are on the taller side, we recommend going with M. At MYMARINI, darker colors (like black or navy) can run slightly smaller and slimmer due to the dyeing process. If you prefer a looser, more relaxed fit in these shades, we suggest sizing up. Keep in mind: a regular slim fit doesn’t mean restrictive — our materials will adapt gently to your shape.

Still unsure after reading this guide? We’re here for you! Our team is happy to advise you personally, even on small differences in length or width. We’ll help you identify the MYMARINI size that fits you best and offers plenty of comfort.

Your MYMARINI should feel like a second skin — secure, comfortable, and confident. When trying it on for the first time, make sure:

• The fabric lies close against your skin, but doesn’t dig in.
• Seams and straps feel pleasant and leave no pressure marks.
• You can move freely and confidently and feel totally relaxed in your MYMARINI.

You decide what feels right to you. Our cuts are inspired by functional swimwear with an aesthetically pleasing twist — for maximum comfort with plenty of stretch and a stylish silhouette.

Our active styles combine support, comfort, and freedom of movement — perfect for anyone who loves being active in the water. Designed for all-day comfort, our swimwear sits softly, never pinches, and adjusts to you. Our designs support your natural mobility — in the water, on the sand, and beyond. Learn more about our active swimwear.

Our styles are as versatile as you are — meant to accompany you over many seasons, not define you. Whether your body needs a longer length on top or bottom, extra support for your bust, or a higher leg opening — our range of designs offers flexible options for a truly individual fit. Here are a few recommendations that might help:

These aren’t rules — just inspiration to help you choose your favorite look. Whether it’s a high- or low-cut leg opening, strap width or placement, or adjustable underbust band — each MYMARINI design comes with its own character. And the best fit is one you don’t have to think about — just wear it and enjoy your day.

Our fabrics are soft, durable, and flexible.

• All MYMARINIs are made from high-quality regenerated nylon with added elastane.
• They adjust to your body shape without stretching out.
• After swimming or washing, they reliably return to their original shape.

This keeps your swimwear looking amazing for a long time. Even after frequent wear, your MYMARINI will maintain its shape and provide consistent comfort. Our swimwear contains no underwires or padding — the stretchy fabric adapts to your body gently and without restricting your mobility. MYMARINI follows a regular sizing system, but your ideal size is always what feels right for you. Our aim is to help you understand your own preferences — not follow fixed rules.

• Our styles are designed with great attention to detail.
• The double-layer finish is incredibly comfortable to wear, and thoughtful seams and flexible materials help keep everything securely in place.
• Every design is thoughtfully created — combining freedom of movement, style, and comfort.

In addition to our designer one-pieces and curated bikini sets, you can also mix and match bikini tops and bottoms to pair your ideal size and style. From the feel of the material to the positioning of seams: we pay attention to every detail that perfects your swimwear fit.

Our Customer Care Team is happy to support you. Reach out anytime via chat or email — we’ll find your perfect MYMARINI together. We’re also happy to help with questions around sizing, fit, or specific styles.