Plus Size Swim & Beachwear

Women's Plus Size Swim & Beachwear

Browse Bonmarché’s range of plus size swimwear. Our plus size swim dresses, beach dresses and swimsuits come in a range of colours and styles that suit all shapes and sizes. Available up to size 28.
220 products found
  • £22.00
    £19.00
    A confidence-boosting suitcase staple, this swimsuit has tummy control lining to give you a smooth shape. That is not all, either: this design features a ruched panel across the chest and down the front, which has an instantly flattering effect. Pop it on for a dip in the pool, or wear it with a maxi skirt and sandals to go from beach to cafe. In a cool green and blue tie-dye print, it perfectly mirrors the colours of the sea for a holiday-ready feel.
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  • £15.00
    £12.00
    There is nothing more classic than a spotty print like the one on this style-steal sundress. The design is a little unique: it has dashed blue dots on a deep navy base, so it is smart enough for evenings out. Wear yours with heels to make the most of the swishy frilled hem and layer it with a cardigan if the temperature drops. The spaghetti straps are easy to adjust for the perfect fit, too.
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  • £25.00
    £20.00
    Having trouble picking a print? Add two classic patterns to your holiday wardrobe with this swimdress. As well as featuring a nautical blue and white striped base, this piece is decorated all over with bold florals in cool blue tones. And as if that was not feminine enough, it also has an elegant sweetheart neckline and a skirt that gives you extra coverage. Slip it on and feel confident on the beach thanks to the supportive tummy control lining.
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  • £15.00
    £12.00
    For an eye-popping print, pick this style-steal sundress. It is covered in overlapping smudge spots in a range of bright colours, from warm oranges to cool aquamarines. The relaxed and floaty shape is easy to throw on over your swimsuit, while the frilled hem gives it a feminine swish. Wear it with wedges on an evening out or sandals for a day at the beach.
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  • Offer - Save £3
    £15.00
    £12.00
    Spotted: you, looking great in this style-steal sundress. The all-over monochrome dab print makes this an instant classic, while the frilled hem gives it a feminine shape. Designed with hot days in mind, it is loose and breezy: perfect for those long strolls down the beach. Light ruching around the neckline is there to flatter, while the wide straps help to hide your bra or bikini.
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  • Offer - Save £2
    £12.00
    £10.00
    For feminine swimwear, look no further than these bikini briefs. The high-waisted cut skims over your figure and nips in at just the right point, while subtle ruching across the front gives your stomach a flattering finish. In an all-over spot print, this design is subtly vintage-inspired. Team yours with the matching bikini top for a coordinated look.
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  • Offer - Save £3
    £15.00
    £12.00
    Taking a summer holiday? Tuck this bold style-steal sundress into your luggage. It comes in a vibrant all-over animal print in rich colours for a sunshine-ready look. Perfect for popping on over your bikini, it is loose and breezy. The frilled hem gives it a satisfying swish, while ruching under the neckline flatters your chest.
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  • Offer - Save £2
    £20.00
    £18.00
    Look sophisticated in and out of the pool in this swimsuit. As well as a slinky one-piece design it features a ruched front that flatters the figure. In-built tummy control panels keep your shape looking sleek, and offer extra support during water-based exercises. The straps are adjustable so you can get the perfect fit.
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  • £25.00
    £13.00
    Chevron stripes? Bold colours? Detachable straps? It is safe to say that this web exclusive swimsuit has it all. The eye-catching print is also flattering: since the bands are angled inwards, they create an optical illusion which is kind on your curves. Of course, the added tummy control panel helps a little, too. Wear yours as a bandeau style for an even tan, or add some extra support with the simple black straps.
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  • £22.00
    £19.00
    Swish your way down the sands in this floaty dress. It has an asymmetric hanky hem that reaches past your knees, creating an effortlessly feminine shape. Made from a lightweight fabric, it is a breezy piece for hot days: just add sandals and a shoulder wrap. The dip-dye design moves from fresh white at the neckline down into soft blue and green hues, capturing the cool tones of the beach. Alter the spaghetti straps to adjust the piece to the right fit.
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  • Offer - Save £2
    £20.00
    £18.00
    Look sophisticated in and out of the pool in this swimsuit. As well as a slinky one-piece design it features a ruched front that flatters the figure. In-built tummy control panels keep your shape looking sleek, and offer extra support during water-based exercises. The straps are adjustable so you can get the perfect fit.
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  • £22.00
    £19.00
    With a tie-dye pattern in ocean-inspired hues, this web exclusive skirt dress is ready for the beach. It is a versatile addition to your holiday suitcase: you can wear it as a skirt, a dress or a strapless dress. The ruched, elasticated top falls flatteringly at the waist into a loose-fitting and feminine skirt, which will swirl around your legs as you walk along the promenade.
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  • Offer - Save £2
    £12.00
    £10.00
    For a bold pop of colour when you are lounging by the pool, slip on these bikini briefs. They come in a tropical pattern with pink and orange leafy palms that really stand out against the black background. The high waist skims over your hips and there is even a little ruching down the front to flatter your stomach. Team yours with the matching bikini top to complete the look.
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  • £25.00
    £17.00
    Add classic style to your poolside looks with this gingham print swimsuit. The stylish bandeau shape is flattering and playful, cutting straight above the bust. You can wear it two ways: strapless or with the removable shoulder straps for a bit of extra support. It also has a tummy control panel for a sleek and smooth shape.
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  • £25.00
    £20.00
    Add some playful glamour to your poolside outfits with this web exclusive swimsuit. It has a fun frill detail across the chest, flattering the bust. The tummy control panel smooths out your silhouette, so you can relax in confidence and strike your best pose for those holiday snaps. The Miami-inspired abstract print features stylised florals and spots in tonal colours.
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  • Offer - Save £2
    £14.00
    £12.00
    What is versatile, feminine and dotty all over? This beautiful bikini top. It comes in a classic spotted print and has a subtle twist at the front that creates flattering ruching across the cups. Supportive straps help to keep you comfortable and are easy to adjust at the back. Team yours with the matching bikini bottoms and a straw sunhat for timeless poolside style.
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  • Offer - Save £3
    £25.00
    £22.00
    Make a splash in this tankini swimsuit, featuring a fresh floral lily print with a striking contrast to catch the eye. Its sleek lines skim the figure, while tummy control panels mean a flattering finish so you can enjoy the beach in confidence. This easy-wearing design is cut with a classic bandeau neckline and finished with adjustable straps for extra support.
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  • Offer - Save £3
    £25.00
    £22.00
    This summer, make room in your holiday suitcase for this swimsuit. Crafted from a stretchy material with concealed tummy control panels, it is both comfy and flattering. The twisted front creates feminine ruching over the chest, while the all-over spotted print is subtle and versatile. Slip off the removable straps to create a bandeau shape or keep them on for extra support.
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  • £25.00
    £20.00
    Nothing quite captures beach-ready style like this ombre swimsuit. In a watercolour-inspired print, it brings together the cool blue and white tones of the sea and sky. It also has a clever tummy control lining that helps to smooth your silhouette for a comfy and flattering fit. Wear it without the straps to avoid tan lines or clip them back on for a little extra support.
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  • Offer - Save £3
    £25.00
    £22.00
    Get your holiday style sorted with this charming swimdress, in a vibrant spotted print. It is designed in a super flattering wrap style with a tie at the side to cinch in your waist. With its flippy skirt and wide straps, the piece gives full coverage whether you are at the pool or beach. It is made from a stretchy material with concealed tummy control panels for an added confidence boost.
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  • £22.00
    £19.00
    This beach shirt is an absolute holiday staple. Made from pure cotton it is cool and breathable, perfect for pulling on over your bikini after a dip in the sea. It is super versatile too: a lace trim running down each sleeve adds a hint of detail, while the fresh white shade is easy to match with your summer essentials. Wear yours with shorts during the day or tucked into a maxi skirt in the evening.
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  • £25.00
    £17.00
    With its understated monochrome hues, this web exclusive swimsuit is sure to never go out of style. Black and white dots bring plenty of pattern to your poolside look, while a block-tone waistband helps to flatter your curves. When you are wanting a change, simple adjust the detachable straps to create a bandeau shape. With a powermesh tummy control panel across the front, you can lie back feeling comfy and body confident.
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  • Offer - Save £2
    £10.00
    £8.00
    Whether you are working on your backstroke or topping up your tan, these swim shorts are a true summer essential. They come in a comfortable and stretchy swim fabric and provide plenty of coverage over your stomach and back. Subtle ruching down the sides helps to flatter your figure: perfect for boosting your beach confidence. In a versatile block hue, they are easy to match with plain or patterned swim tops.
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  • When warm weather calls for breezy dressing, turn to this lightweight Isla & Rose maxi dress. It has a loose and flowing shape that skims over your figure and gives you plenty of room to move. It is also made from a smooth viscose fabric that is naturally stretchy. The all-over tie-dye pattern toes the line between smart and casual: just add a blazer and heels in the evening or a floppy hat and sandals for an easy boho outfit.
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  • £25.00
    £20.00
    Glamorous enough for any summer holiday, this web exclusive swim dress will add some vintage style to your beach day look. It laces up on the bust, so you can adjust it for a better fit. The tummy control panel keeps your silhouette streamlined while you relax by the pool or dive in with the rest of your family.
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  • £15.00
    £12.00
    Swish your way through summer in this pretty printed sundress. With its all-over floral pattern and delicate frilled hem, it is effortlessly feminine. The loose shape and lightweight fabric help to keep you cool on warm days, while the slightly thicker-than-average straps discreetly cover your bikini or bra. Just add sandals for an easy sand-to-sangria look.
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  • £15.00
    £12.00
    Casual and colourful, this tie-dye playsuit is a summer holiday essential. It comes in a soft jersey fabric made from pure cotton, so it is cool and breathable. Pop it on over your swimsuit and adjust the elasticated waistband for a comfortable fit; you can even take the straps off if you prefer a bandeau-style neckline. With its tie dye-effect print, it strikes the perfect balance between playful and pretty.
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  • £12.00
    £10.00
    Want to go bold with your holiday look? Add these bikini briefs to your luggage. They come in a high-waisted shape with plenty of coverage across the back and stomach, and there is even a tummy control lining inside. This helps to smooth your figure while the ruched panel along the front perfectly flatters your curves. Then there is the print: a mixture of both traditional nautical stripes and bright blooms in vivid blue hues. Wear yours to bring colour to a muted tankini, or create a set with the matching bikini top.
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  • £12.00
    £9.00
    Take a trip to the great British seaside in these vintage-inspired bikini briefs, which are available exclusively online. The gingham print harks back to the 1950s, as does the flattering high-waisted shape. If the pretty ruching on the front was not enough, this design has a hidden tummy control panel. Match these with a gingham bikini top, or mix things up with a block-colour style.
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  • Superb for holidays or summer days at home, this floral web exclusive dress is made for swishing around in the sunshine. It has removable straps that can be adjusted in three different ways, giving you lots of different styling options: wear it as a sundress, strapless or as a skirt. Its floaty fit and comfortable elasticated chest panel make it easy to throw on over swimwear. Just add some jewellery and go straight from beach to brunch.
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  • £25.00
    £13.00
    Whether you're strolling along the sands or sipping sangria, pop on this web exclusive overhead kaftan. Made from a lightweight crepe fabric and cut into a breezy shape, it is a cool top layer to wear over your bikini after a dip. The neckline dips into a V at both the front and back to frame your shoulders, and a handy tassel tie will stop it from slipping. Pair yours with a black swimsuit to let the contrasting embroidery stand out and add shorts when you are heading to the shops.
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  • £15.00
    £12.00
    Ahoy there! This versatile playsuit combines classic sailor stripes with a soft and comfortable jersey material, ready to be slipped on with some sandals and a straw hat for a day in the sun. The elasticated bandeau top and tie waist create a sophisticated, figure-flattering silhouette, while handy front pockets add a casual touch to the look.
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  • Offer - Save £3
    £28.00
    £25.00
    For a feminine piece that was made for hot-weather holidays, pick out this web exclusive swimsuit. It is decorated in an all-over leaf print in vibrant pinks, purples and oranges, which instantly brighten your poolside attire. With rich jewel embellishments between the cups, it even comes with a hint of sparkle. An in-built tummy control panel helps to flatter your stomach, while detachable straps let you switch to a bandeau style in a flash.
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  • £22.00
    £17.00
    Proving that polka dots never go out of style, this playsuit is a beach-ready must-have. The easy-going shape, with its swishy shorts and belted waist, is quintessentially feminine (and there is elegant shirred edging on the neckline for good measure). It comes in a lightweight jersey fabric that is cool enough for those hot-weather holidays. Pop your sunnies in one of the front pockets to keep them on hand.
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  • In a bright shade and with a bold zebra print, this lightweight jumpsuit by Isla & Rose captures two trends at once. Cut to flatter, it has a laid-back sleeveless shape and a hint of comfortable stretch in its airy fabric. Choose to define your figure by cinching in the tasselled drawstring at the elasticated waist or leave it loose and relaxed. The crossover front has a deep V neck and is fastened with poppers.
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  • £18.00
    £14.40
    Embrace a festival feeling in a subtle way for summer with this Isla & Rose camisole, available exclusively online. The lightweight material, loose cut and eye-catching tassel hem make this a fun piece, while the simple spaghetti straps and block-colour design pares down the look. Made from a high-quality, soft-touch fabric with just a little stretch, this is a comfortable option for warmer days.
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  • A throw-on piece for hot days, this sundress is a style steal. It has a loose shape that is perfect for layering over a bikini: just add a hat and sandals before heading to the beach. Or layer it with a jacket and wear trainers for a weekend look, as the deep navy base and simple jacquard print keep it versatile. To give it a subtly feminine shape, there is a frilled hem and lightly ruched neckline.
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  • Offer - Save £3
    £25.00
    £22.00
    Stroll straight from the sea to a beachside cafe in this versatile swimdress. Fitted with a skirt-like top layer, it offers a little extra coverage over your hips and thighs. It also has a built-in tummy control panel to smooth your figure and boost your poolside confidence. In a striking zebra print, it is a vibrant addition to your holiday wardrobe.
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  • Offer - Save £2
    £14.00
    £12.00
    Packing for a beach holiday? Tuck this bikini top into your suitcase. It has an all-over tropical print in rich oranges and pinks that perfectly suits a hot-weather retreat. The tab front gives it a flattering shape and creates feminine ruching across the cups. The design also has detachable straps, so you can wear it bandeau style to avoid tan lines or as a halterneck for added support.
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  • Your summer wardrobe needs a maxi dress, like this design by Isla & Rose. Everything about it is ultra feminine: from its floor-grazing length and frilled neckline to the bold tropical floral print. It is crafted from high-quality lightweight fabric with a hint of stretch, which helps you stay cool and comfy. At the waist, an on-trend tassel tie lets you cinch in the material for a defined fit.
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  • Offer - Save £3
    £22.00
    £19.00
    Nothing quite says vintage seaside charm like a bold polka-dot swimsuit. This design has a hidden tummy control panel to smooth your figure and flattering ruching down the front. A twisted panel across the chest creates an easy sweetheart shape that frames your curves. Just add large sunglasses and wedge heels to complete the look.
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  • £15.00
    £10.00
    Need an outfit to go from beach to shoreside bar? This flexible playsuit can do both. With its bandeau neck it is easy to wear over a strapless bikini top, so you can wave goodbye to tan lines. The loose shape is cool and easy-going, while an elasticated waist with a front tie helps to flatter your figure. Featuring a soft painterly print on a versatile green base, this tropical floral design is holiday-ready when you are.
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  • £25.00
    £17.00
    Earning its place as a suitcase essential, this web exclusive spotted jumpsuit can be worn two ways. Remove the straps for a bandeau shape that is great for avoiding tan lines. Want extra support? The straps can be added and adjusted for the perfect fit. In a cool, wide-leg cut, it makes hot-weather dressing a breeze, while the elasticated waistband brings definition to your silhouette.
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  • £22.00
    £17.00
    For a trip to the tropics, do not forget to pack this bold playsuit, which is available exclusively online. Colourful palms in rich colours instantly turn up the heat, while the floaty shape will keep you cool. Spending the day relaxing under the sun? Stay comfortable thanks to the elasticated waist, which also has a self-tie belt you can adjust for a feminine silhouette. Shirred detailing adds a little extra texture to the neckline.
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  • £25.00
    £20.00
    This tankini swimsuit has a little bit of everything. Sleek horizontal stripes across the top make it a seaside classic, while bold floral placement prints bring a touch of Hawaiian style. It also has a handy tummy control lining that helps to smooth your silhouette without sacrificing on comfort. To avoid tan lines simply pop off the detachable straps: these are also easily adjustable to suit your shape.
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  • Breeze into the warmer seasons with this fabulous frill-hem sundress. A total style steal, the piece has a vibrant floral pattern to bring a pinch of tropical warmth to your look. With spaghetti straps and a knee-length cut, it works perfectly for evening garden parties: just throw on a shrug or cardigan as the night rolls on.
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  • £12.00
    £8.00
    For versatile bottoms that have your comfort in mind, pick these simple bikini briefs. In a deep black hue, they are instantly figure-flattering, although the smoothing powermesh lining should take some of the credit. The high waist provides a touch of extra coverage around your stomach and is finished with eye-popping bright embroidery. Team them with the matching bikini top for a coordinated look.
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  • Offer - Save £2
    £20.00
    £18.00
    Feel confident as you stroll along the beach in this swimsuit. Thanks to a hidden tummy control lining and ruched detailing down the front, the piece helps to smooth your figure and flatter your curves. Moulded cups frame your chest, while slightly thicker straps give you plenty of support. Tie a colourful sarong around your waist for trips to the cafe.
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