Prima Donna Bra Fitting Size Guide

Prima Donna is a luxury lingerie brand designed for fuller busts, offering elegant bras, briefs, shapewear, and swimwear in a wide range of sizes. Discover expert sizing tips, style guides and care instructions to ensure the perfect fit. Keep reading for more.

Prima Donna was originally established in 1865 in Germany, but was revitalised in 1990 when the Belgian company Van de Velde obtained the brand. Renowned for its luxurious and high-quality lingerie, Prima Donna caters specifically to fuller-busted women, offering an impressive range of cup sizes, from B to M cups, and band sizes ranging from 30" to 48". Known for its elegant yet supportive bras, briefs, shapewear and swimwear, Prima Donna expertly blends sophisticated design with exceptional comfort, making it a go-to for women seeking both style and a flawless fit in larger sizes. The brand is divided into three main categories: Prima Donna, Prima Donna Twist, and Prima Donna Swimwear, with Twist and Swimwear offering slightly different fits, so it's important to follow sizing guidelines for the perfect fit.

Prima Donna Band and Cup Sizing

Prima Donna uses European band and cup sizing, which may differ from the sizing systems used in other countries.

If you are based in the UK and are unsure of your bra size, click here for a detailed guide on how to measure your bra size at home.

If you're confident that you know your exact band size, simply locate your usual size on the chart along your country’s row and trace upwards to find your Prima Donna size. Use this size when selecting your Prima Donna bra or swimwear. Alternatively, if you're unsure, measure your band size in either centimetres or inches and refer to the top row on the chart to determine your perfect fit. This will ensure you select the right size for optimal comfort and support in your Prima Donna bra. Always take note if there is a fit tip on the specific product you're looking to purchase.

Prima Donna Band Size Conversion

Prima Donna Cup Size Conversion

To determine your correct cup size for Prima Donna bras, simply find your usual cup size along your region's row on the chart, then trace upwards to identify the corresponding cup size for Prima Donna. Please note that Prima Donna does not use double cup sizes (such as DD, FF), so the chart will guide you on what size to select if you typically wear a double cup size.

Prima Donna Twist Size Conversion

After January 2026

As of January 2026, Prima Donna, Prima Donna Twist and Swimwear will fit exactly the same.

If you're new to Prima Donna and would like to purchase a bra, either from the main collection or Twist, you can use the size guide provided above to select your perfect size.

At Belle Lingerie, we offer free UK returns for your convenience. If the size of your bra isn’t quite right, simply return the one that doesn't work for you at no additional cost.

Prima Donna Bralettes

Prima Donna offers bralettes in your usual band and cup size, with sizes ranging from C to G cup. You can select your typical size for a perfect fit and enjoy the same exceptional support and comfort that the brand is known for.

Prima Donna Brief and Bikini Brief Sizing

Prima Donna briefs and bikini briefs are available in sizes ranging from XS to 4XL. If you're confident you know your brief size (e.g. 8, 10, 12), refer to the first chart below, locate your size on your region's row, and trace upwards to find your exact Prima Donna brief size. Alternatively for a more precise fit, use the second chart. Simply measure your low waist and backside in centimeters, then compare your measurements to the chart to determine your perfect brief or bikini brief size.

If you already know your Brief size

Exact measurements of Prima Donna Brief sizes

Prima Donna Swimwear Fitting Guide

By January 2026, Prima Donna swimwear will be sized the same as the main Prima Donna lingerie range. Use the Prima Donna size charts provided at the beginning of this article to find your perfect swimwear fit.

If you're a Prima Donna Swimwear regular-wearer, when selecting your next piece of swimwear to purchase after January 2026, go down 1 cup size from your regular size! For example, if you've been purchasing Prima Donna swimwear in a 38F, you need to select a 38E when buying again.

Caring for Prima Donna Swimwear

Prima Donna provides specific care instructions to help maintain the quality and longevity of your swimwear:

Avoid wearing new swimwear in saunas or jacuzzis, as heat can significantly degrade the fabric. For these settings, it’s recommended to use an older swimsuit.

Keep swimwear away from chlorine and sunscreen to prevent damage to the material.

Rinse swimwear immediately after use in clean, cold water to remove chlorine, salt or sand.

Wash swimwear in cold water with a mild liquid detergent designed for delicate fabrics. We recommend using Soak Wash, a rinse-free and eco-friendly soap that’s perfect for delicate lingerie and swimwear.

Never soak swimwear overnight or wring it out, as this can stretch or damage the material.

Do not tumble dry swimwear. Instead, hang it to dry in a shaded area to preserve its shape and elasticity.

Prima Donna Bra Shapes & Styles

Choosing the right bra goes beyond just size. it’s about selecting the shape that best compliments your bust. Prima Donna have provided a simplified overview of its key bra styles, which Belle Lingerie have organised into three main categories to help you find the perfect fit and support.

Full Coverage Styles

Full Cup Bras - Full cup bras are a great choice for women with larger cup sizes, providing ultimate comfort and support. These bras fully cover the breasts, lifting and centering them for a smooth, natural shape. With straps placed slightly closer together, they help prevent slippage, ensuring a secure fit. Ideal for creating an elegant, feminine silhouette, full cup bras offer exceptional support and a sleek look under any outfit.

Bralettes - Prima Donna bralettes are designed with underwires to provide solid support for fuller busts. The wide band under the cups adds extra stability, ensuring comfort and support. Not just functional, these bralettes also double as a stylish top for a chic, feminine look.

Wireless Bras - These bras offer the comfort of no underwire while still providing excellent support for larger cup sizes. The sturdy band, made from durable materials, is the primary source of support, while the cups are lined with firm fabric to provide lift. Wireless bras from Prima Donna are designed for women who want comfort without sacrificing fit or support.

Moderate Coverage Styles

Balcony Bras - Balcony bras offer a gorgeous lift and a more revealing look thanks to their lower-cut cups. The horizontal lines of the cups create a flattering, rounded shape, perfect for tops and dresses with low or rounded necklines. The straps are positioned closer together to prevent them from slipping off, ensuring both support and style. For added comfort, Prima Donna’s balcony bras feature padded cups or strong tulle for extra lift.

T-shirt Bras - Designed for a smooth, seamless finish, T-shirt bras are ideal for wearing under fitted outfits, offering an invisible look. These bras are available in neutral shades and feature either lightly padded cups or breathable 3D spacer material.

Deep Plunge Bras - Deep plunge bras are perfect for creating stunning cleavage with their extra-low cut. These bras look feminine and seductive under low-cut tops and blouses, providing a bold yet supported look. Despite their plunging style, Prima Donna’s deep plunge bras offer exceptional support and lift, thanks to a combination of sturdy materials and thoughtful design.

Minimal Coverage Styles

Strapless Bras - A must-have for sleeveless tops or dresses, the high-quality strapless bras from Prima Donna provide reliable support for those with larger breasts. Featuring padded cups, a sturdy elastic band and a strong back panel, Prima Donna's strapless bras deliver support up to a G cup, ensuring a secure and comfortable fit without the straps.

Sports Bras - Sports bras are essential for minimising movement and discomfort during physical activity, particularly for those with larger cup sizes. Prima Donna’s sports bras offer options with or without padding and underwire, to provide firm support. Made from soft, breathable fabrics that wick away moisture and prevent chafing, these bras keep you comfortable while offering the right amount of support to avoid pain during exercise.

Prima Donna Brief Styles

Prima Donna provides a stunning range of briefs that combine style, comfort and optimal coverage. Here’s a quick guide to some of their most popular styles, designed to help you find the perfect fit and shape to suit your preferences.

Rio Briefs - Rio briefs are your standard, regular briefs that every woman needs. These briefs offer full coverage at the back and are cut elegantly high at the front, creating a feminine silhouette. They sit comfortably at the hips, making them versatile enough to pair with any bra style. Available with delicate lace, embroidery or tulle at the legs, Rio briefs provide a timeless, feminine look. They are perfect for any special occasion, no matter your preference, Rio briefs offer something for everyone.

Full Briefs - For those seeking more coverage, full briefs are an excellent option. These high-waisted briefs offer extra fabric around the waist and tummy, providing additional comfort, especially when wearing fitted dresses. Full briefs cover more of the back than Rio briefs but retain an elegant cut at the legs for a feminine look. Sitting comfortably at the waist, they create a supportive fit, and some styles offer light shaping for a smooth, streamlined silhouette.

Hot Pants - For a playful, youthful look with a comfortable fit, consider hot pants. This style features longer legs, whilst showing a hint of the rear. Sitting at the hips, it combines a flirty, retro style with supreme comfort. These briefs are perfect for wearing under fitted outfits, providing an invisible finish that ensures no lines or seams show through.

Thongs - Thongs are the epitome of femininity, offering minimal coverage while creating a sleek, invisible look under fitted skirts or pants. With their T-shaped design and extra-high front, they offer an elegant, flattering silhouette. The lack of back coverage ensures no visible panty lines, making them ideal for tight or form-fitting clothing. Some Prima Donna collections feature luxury thongs with lace or embroidery, making them perfect for special nights out or romantic evenings.

Shapewear - Prima Donna's shapewear offers a smooth, seamless design that remains invisible under any clothing, providing support and shaping without sacrificing comfort. Available in a wide range of sizes, from petite to plus size, Prima Donna ensures that every woman can find her perfect fit. The shapewear is crafted from soft, comfortable materials that enhance your natural shape, creating a sleek, streamlined look that compliments any outfit.

Prima Donna Swimwear Styles

We know that finding stylish and comfortable swimwear for larger bust sizes can be a challenge, but Prima Donna addresses this with a range of swimwear that delivers both an impeccable fit and elegant design. Here's a look at just a few of their swimwear styles, each offering unique benefits for a flattering and comfortable fit.

Padded Bikini Tops - Padded bikini tops provide extra support and shaping, making them a fantastic choice for those seeking a little more lift. The padding enhances your natural shape while offering modest coverage, ensuring you feel confident and secure. Perfect for a variety of body types, they offer both comfort and style, with a smooth finish that looks great under any beachwear.

Balcony Bikini Tops - Balcony bikini tops offer a seductive lift with their straight across design that enhances your cleavage. They provide excellent support, while the cut allows for more freedom and a flattering silhouette. Ideal for women with fuller busts, this style creates a beautiful, rounded shape and pairs perfectly with high-waisted bikini bottoms for a vintage-inspired look.

Full Cup Bikini Tops - Full cup bikini tops are designed to provide complete coverage and support, making them a great option for larger busts. With a higher cut at the sides and more fabric in the cups, these tops offer a secure and comfortable fit while still looking stylish. Full cup bikini tops help to lift and shape the bust, ensuring you stay supported throughout the day, whether you're swimming or lounging.

Tankini Tops - Tankini tops combine the coverage of a one-piece swimsuit with the flexibility of a two-piece. Offering full coverage for the stomach and hips, tankinis are perfect for those who want a little more modesty while still enjoying the freedom of a bikini. These tops provide support and shaping while remaining stylish and easy to mix and match with different bottom styles.

Swimsuits - For those who prefer the all-in-one look, Prima Donna's swimsuits offer excellent support and a flattering fit. Designed for comfort and style, these swimsuits are perfect for full-figured women, providing shaping and support in all the right places. Available in non-padded and half-padded options, and underwired or non-wired, there's a swimsuit for everyone in the Prima Donna range.

Caring for Prima Donna Lingerie

Prima Donna have set out a simple guide to follow when caring for your lingerie to keep your bras looking and feeling great for as long as possible:

Hand wash your bras to preserve elasticity and shape, helping them last longer.

After rinsing, lay your bras flat on a towel, cover with a second towel, and gently press to remove excess water. Never wring or squeeze! Avoid hanging them by the straps to dry, as this can stretch them out, instead leave the bra flat to dry.

Wash nude bras with colours, separately from whites, to prevent discolouration. Use a gentle detergent without bleach, we recommend using Soak Wash, an eco-friendly soap that ensures your precious items of lingerie smell and feel as good as new.

Wash bras every 2 to 3 wears to maintain freshness and longevity.

And there you have it, your complete guide to Prima Donna lingerie. You can check out our complete Prima Donna Lingerie & Swimwear Collection here. Any questions? Get in touch!

Prima Donna Bras Sale

Congratulations on discovering your perfect fit! Now it’s time to reward yourself with some gorgeous Prima Donna bras available at incredible discounts. Explore a fantastic range of luxurious styles, offered in a variety of sizes and beautiful shades, designed to support and flatter every shape. Whether you’re refreshing your essentials or adding a statement piece, this sale is the perfect opportunity to upgrade your lingerie collection without breaking the bank. Don’t wait - shop today and give your wardrobe the stylish boost it deserves!

Full Cup Bras

Prima Donna Deauville Full Cup Bra - As one of the best-seller styles at Belle Lingerie, the Prima Donna Deauville Full Cup Bra is a true luxury essential. Designed with underwired, non-padded three-piece cups, it delivers exceptional support and full coverage for fuller busts, ensuring both comfort and confidence. The bra’s delicate, sheer mesh upper cups are beautifully accented with vibrant embroidery, while the textured lower cups add a sophisticated contrast. Feminine bows at the centre and cup apexes provide charming finishing touches. Built for a personalised fit, the Deauville features double-lined cups, adjustable straps and a secure hook-and-eye closure, offering sturdy support and comfort all day long. Shop this top-rated bra now in the sale while it lasts!

Prima Donna Madison Full Cup Bra - Exuding timeless magnificence, the Madison Full Cup Bra is a standout from one of the brand’s most-loved collections. Celebrated for its flawless fit and elegant design, this bra features non-padded, three-piece cups framed by a supportive underwire delivering dependable, all-day comfort for fuller busts. The opaque lower cups ensure secure, full coverage, while the romantic floral lace on the upper cups creates a sophisticated semi-sheer effect, blending beauty with function. Fine decorative edges, delicate straps and charming bow details at the centre and cup apexes add exquisite feminine touches. Designed with adjustable shoulder straps and a reliable hook-and-eye closure, this bra offers a bespoke, luxurious fit that inspires confidence and elevates your everyday lingerie collection. We advise to claim this deal quickly as it won't last forever.

Prima Donna Montara Full Cup Bra - Elegant, supportive and effortlessly refined, the Montara Full Cup Bra is a best-selling shape designed for those who value both comfort and luxury. Featuring full coverage, underwired cups, it offers reliable support while maintaining a soft, gentle fit - perfect for all-day wear. The non-padded, lined cups create a smooth silhouette against the skin, while the lowered under band ensures ease and flexibility without compromising structure. Embroidered lace detailing adds a sophisticated, feminine touch, elevating this everyday essential into something truly special. Complete with adjustable straps for a personalised fit, this bra delivers the signature Prima Donna blend of style, comfort, and craftsmanship - ideal for fuller busts seeking elegance in every detail. Make it yours now while saving yourself some cash!

Prima Donna Salerno Full Cup Bra - A timeless favourite, this bra has earned its best-selling status thanks to its flawless blend of comfort, support and elegant design. With a full-cup silhouette, this bra offers secure coverage and lift, ideal for fuller busts looking for everyday confidence with a refined finish. Delicate lace panels bring a touch of glamour, while the double-lined cups enhance both comfort and long-lasting wear. Whether you're dressing up or keeping it simple, this bra promises a premium fit with effortless sophistication, treat yourself now whilst it's still discounted.

Bralettes

Prima Donna Montara Bralette - Effortlessly elegant and endlessly wearable, the Montara Bralette offers a full-cup, wireless design that delivers both comfort and gentle support - without sacrificing style. Designed without padding, it creates a beautifully natural shape, while the plunging neckline adds a touch of allure and subtle cleavage. Perfect as a chic layering piece or worn solo, this versatile bralette blends fashion with function. Adjustable straps and a hook-and-eye closure ensure a personalised fit, while the use of recycled lace makes it a sustainable choice you can feel good about. Whether you wear it as underwear or outerwear, this bralette is all about confidence, comfort and conscious style, don't miss out!

Prima Donna Style-Specific Sizing Tips

This fit guide is designed to help you navigate the different Prima Donna bra styles with ease. Based on our expertise and valuable feedback from our customers, it offers insight into how various bra shapes typically fit. While these recommendations can be a helpful starting point, everybody is different. That’s why we offer free UK returns - so you can try, compare and find the fit that feels just right for you.

FAQs

1. How do I find my Prima Donna bra size?
Measure your band just under the bust and the fullest part of your bust for your cup size. Use our Prima Donna size charts for accurate sizing, noting differences for Twist and swimwear collections before January 2026.

2. What Prima Donna bra styles are best for larger busts?
Prima Donna full cup bras are renowned for providing strong support, lift, and comfort for larger busts. In terms of the style of bra, choose based on your preferred design and features for the most flattering fit. Laminated cups and side support panels are attractive features in a full cup bra when searching for maximum support.

3. How should I care for Prima Donna lingerie and swimwear?
Hand-wash bras and swimwear in lukewarm water with a gentle detergent like Soak Wash and lay flat to dry. Avoid tumble drying, saunas, chlorine and direct heat to preserve fabric, shape and elasticity.