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.
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55 products found
  • Cannot decide on your favourite shade? Wear them all with this lightweight sundress. It features an all-over rainbow print in a flattering chevron stripe, with muted navy piping along the neckline and straps. This cool piece is perfect for hot days: throw yours on over your swimsuit when you are heading to the beach, or wear it with wedges for a weekend lunch. Ruching down the front gives it a relaxed and floaty shape that skims easily over your figure.
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  • With its vibrant colour and stylish snake-print pattern, this sundress is a true style steal. It has a frilly hem that adds a playful finish to the sleek silhouette. Wear it by night with a pair of heels and a short cardigan or during the day with sandals and a floppy sun hat.
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  • This style steal sundress is immediately eye-catching thanks to its feminine floral pattern. It has a simple, breezy cut with a round neck and slim straps, all of which promise to keep you cool in the sunshine. Pops of colour in the print stand out against the dark background, while a delicate frill at the hem gives the design some extra movement. Look elegant but laid-back by teaming yours with a lightweight shrug and sandals for al fresco dinners on warm evenings.
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  • Packing for your beach holiday? Remember to tuck this palm printed swimsuit into your suitcase. It is cut low on the leg to give you a touch of extra coverage and has a flattering ruched panel down the front. Plus, there is a secret tummy control mesh lining that helps to sculpt and smooth your figure. Adjust the straps to get the perfect fit then layer it with a floaty sarong: ready for a slow amble along the sands.
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  • Ideal for warm days in the garden and meals by the sea, this bright sundress is the perfect addition to any summer wardrobe. It has a pretty floral pattern featuring tropical blooms on a vibrant backdrop. The frilly hem adds a final touch of elegance to the easy-going shape, ideal for evenings spent enjoying live music.
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  • With this sleek and simple swimsuit, feeling beach-ready this season is easy. It has a whole panel of flattering ruching down the front, as well as a built-in tummy control lining that helps to smooth your shape. To give you plenty of support, the straps are a little thicker than average and are adjustable at the back. Wear this block-tone piece with a printed sarong and sandals when you are wandering down to the pool.
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  • Keep cool and look fresh in this lightweight style steal sundress. With its floaty shape, it is easy to pull on over your swimsuit ready for the beach. Or complement the feminine frilled hem with heels and a shawl to create an elegant outfit. The design features a subtle all-over white leaf print on a pink base, giving it just a touch of summery pattern.
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  • Pop this snake-print swimdress in your suitcase and make waves on your next holiday. It has a flattering, floaty shape and is fitted with a tummy control lining to help you look your absolute best poolside. A tab detail separates the cups, giving a little structure to the piece. Slip on with your favourite sunnies and you are good to go.
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  • With this sleek and simple swimsuit, feeling beach-ready this season is easy. It has a whole panel of flattering ruching down the front, as well as a built-in tummy control lining that helps to smooth your shape. To give you plenty of support, the straps are a little thicker than average and are adjustable at the back. Wear this block-tone piece with a printed sarong and sandals when you are wandering down to the pool.
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  • Poolside glamour has never been easier to achieve than with this floral swimdress. The seasonal print is livened up by touches of glittering foil, giving the piece a little sparkle when the sun is out. Its design is fitted with tummy control, which creates a flattering fit that is boosted by the flowy shape. Team with a sarong and sandals when heading from beach to bar.
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  • £25.00
    £10.00
    Bring some fashionable flair to days by the pool in this eye-catching swimsuit made from a textured fabric for an irresistible feel. This piece has a gentle plunge at the chest to help make the most out of your figure. A bold, contrast colour block band sits just under the bust to flatter the waist.
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  • Lightweight fabric combines with a standout pattern to make this style steal sundress the perfect choice for summer days out. The fit is easy-going and airy, keeping you cool when temperatures rise. A vibrant floral print stands out against a dark background for a dramatic effect, while the flippy frilled hem adds a touch of femininity. Dress yours up with heels and a drapey cardigan or stay casual with sandals and bare shoulders.
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  • With its unique wrap design, this swimsuit effortlessly flatters your curves. The crossover front creates a feminine V neck and draws you in at the waist, while the bold top panel adds a pop of colour to the muted navy base. Inside, there is a silhouette-smoothing tummy control lining to help you feel confident while lounging on the beach. Complete your beach-ready outfit with a breezy sarong and a pair of glamorous sunglasses.
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  • Making a summer statement is simple in this eye-catching sundress. When the rays come out, this style steal helps you stay cool thanks to its lightweight fabric and breezy cut featuring slim straps and a round neck. A repeat geometric pattern pops colourfully against the dark background. Emphasise the flip of the frilled hem by teaming yours with heels or keep it laid-back with sandals.
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  • Breeze into the holiday season with this fabulous knee-length sundress. Made from a lightweight and breezy fabric, it is the perfect piece for wearing over your swimwear. Thick spaghetti straps help to hide your bra or bikini, while the frilled hem gives a feminine shape. The piece even has an all-over tropical palm leaf print in rich hues: just what your wardrobe needs. Add sandals and a wide-brimmed hat to complete your warm-weather outfit.
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  • Shine bright by the pool in this eye-catching swimsuit. The tropical floral pattern is accented by shimmering foil details that sparkle in the sunlight. As pretty as it is practical, the piece has a tummy control panel to offer support and keep your silhouette sleek. Gathered fabric adds to the figure-flattering look. Style with a black sarong and wedge sandals for the ideal holiday outfit.
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  • Relax by the pool in style with this statement swimsuit. The eye-catching monochrome design features an artistic pattern on the bust and a plain body for a bit of contrast. A knot tie at the chest and tummy control panels keep the silhouette nice and sleek. This piece also has adjustable straps, so you can get the fit and support that you need.
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  • Bring plenty of pattern to your beach outfit with this multiway swimdress. The all-over navy and white tribal print is both lively and versatile: pair yours with a plain sarong and sandals when you are wandering down to the pool. It also has a tummy control lining down the front to help you feel confident. Wear the straps for extra support or take them off to create a bandeau-style look (just the thing to keep tan lines at bay).
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  • Swish your way across the sand in this lightweight sundress. Cut from a floaty fabric, it is easy to throw on over your bikini ready for the beach. The frilled hemline gives it a feminine flourish, while subtle ruching at the neckline flatters your chest. It features a bold white spot print against a rich blue base for a bit of contrast. Wear yours with wedges and a lightweight jacket for evening strolls on hot days.
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  • Channel instant holiday vibes when you slip on this sleeveless beach dress. The perfect cover-up for fun in the sun, it is made from a lightweight viscose material to keep you cool. The lace-up V neckline features metallic trim and is lined with sequins for a hint of head-turning sparkle. Team with sandals and a floppy hat for an easy, beach-ready look.
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  • Make a statement in the swimming pool with these eye-catching bikini briefs made from a subtly textured fabric. They are accented with colour-block details at the sides for a look that instantly flatters the figure. Thanks to the high waist and built-in tummy control, they will keep your silhouette streamlined and ready for those holiday snaps.
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  • £18.00
    £7.00
    Flattering and stylish, this tankini is the perfect addition to your holiday wardrobe. The fabric is subtly textured for a unique feel. It fastens with a self-tie halter neck, which you can adjust for the most comfortable fit. Colour-block bands sit under the bust, along the cups and on the strap for an eye-catching and elegant twist. Team this tankini with the matching briefs or go for bikini bottoms in a complementary colour.
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  • There are three ways to wear this versatile piece: as a dress with or without straps, or as a skirt. Covered in a palm print with laid-back shirred detailing on the top section, it will bring a tropical twist to your holiday wardrobe. The lightweight material means it makes a handy cover-up for when you are beside the pool.
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  • Flattering and feminine, this swimsuit is a suitcase staple. It has a bandeau neckline with a frill detail that gives it a retro feel. The tummy control smooths your shape and the adjustable shoulder straps make sure you are always comfortable dipping in and out of the pool. Indulge in old Hollywood glamour by matching with a pair of dark sunglasses.
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  • Feel fabulously confident on the beach in this bright and bold swimsuit. It features an all-over banana leaf print that is sure to catch the eye while on holiday. Subtle ruching under the bust is flattering for your figure and the straps offer plenty of support. Plus, there is a secret tummy control mesh lining that helps to sculpt and smooth your figure.
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  • Feel cool and confident by the beach or pool in this bold swimdress. The belted wrap shape cinches your waist for a flattering yet comfortable fit while the V neck completes the feminine look. Concealed tummy control technology will help you look and feel confident all day long.
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  • Heading on a beach break? Make sure you pack this swimsuit. The vibrant tropical leaf print comes in a range of cool blue and green hues, just what any poolside outfit needs. Keep the straps in place for extra support or detach them to create a bandeau-style swim piece. Thanks to a concealed tummy control lining, you can feel confident while you lounge by the pool.
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  • With its sleek and simple design, this swimsuit will leave you feeling pool or beach-ready this season. It has a whole panel of flattering ruching down the front, as well as a built-in tummy control lining that helps to smooth your shape. To give you plenty of support, the straps are a little wider than normal, and are also adjustable at the back.
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  • 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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  • With its subtle texture and a big bold pop of contrast colour, this bikini top brings fun and glamour to relaxing beach days. The halter neck shape is flattering on the figure and can be adjusted to give you the right level of support as well as the perfect fit. Team with the matching briefs or mix with a printed pair for a unique combination.
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  • Channel instant holiday vibes when you slip on this sleeveless beach dress. The perfect cover-up for fun in the sun, it is made from a lightweight viscose material to keep you cool. The lace-up V neckline features metallic trim and is lined with sequins for a hint of head-turning sparkle. Team with sandals and a floppy hat for an easy, beach-ready look.
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  • A true suitcase essential, this tankini is flattering and feminine. Down the front it has a whole panel of concealing ruching, as well as a tummy control power mesh lining on the inside. With thick straps and lightly moulded cups, it is designed to give you plenty of support. Match the bright geometric print with briefs in the same pattern or a complementing colour.
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  • With its all-over banana leaf print in monotone colours, this muted tropical inspired swimdress is sure to put you in the holiday mood. An ideal option for either the beach or pool, it has a pretty twist front design and added tummy control to help you feel extra body-confident.
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  • Bring life to your holiday wardrobe with this vibrant swimsuit featuring a tropical yellow and green colour palette. To ensure a flattering fit, there is built-in tummy control and ruched detailing on the front. Wear it with a floaty kaftan or sarong and a sunhat for a glamorous poolside attire.
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  • Swish your way from the beach to a nearby cafe in this bandeau swimdress. The feminine skirt gives you a touch of extra coverage over your thighs, while the detachable straps make it extra versatile. Take them off to avoid those pesky tan lines, or slip them back on for some added support. This piece even has a built-in tummy control lining that helps to smooth your figure. Match the colourful geometric print with some metallic jewellery for a playful finish.
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  • 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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  • Preparing for a day at the beach? Slip on this style-steal sundress. Made from a lightweight and breezy fabric, it is the perfect piece for wearing over your swimsuit. Thick spaghetti straps help to hide your bikini, while the frilled hem gives a feminine shape. The piece even has an all-over tropical leaf print in rich hues: just what your holiday wardrobe needs. Add sandals and a wide-brimmed hat to complete your warm-weather outfit.
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  • You are sure to make a splash in this vibrant swimsuit, featuring an all-over tropical-inspired floral print set against a black background. Ruching at the front and clever tummy control technology make this a wonderfully flattering choice, giving you a little confidence boost at the beach. Throw a breezy kaftan over this sleek one-piece for easy poolside sophistication.
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  • Go bold with your holiday swimwear and slip on these printed bikini bottoms. They have an intricate all-over snake print in cool blue and white hues that perfectly match the ocean waves. In a high-waisted cut, they give you plenty of coverage and even have a tummy control lining to help smooth your silhouette. A ruched panel at the front offers a confidence boost, too. Add the coordinating bikini top for an easy poolside look.
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  • For two beach-ready looks in one, pack this reversible swimsuit in your holiday suitcase. One side is inspired with a tropical leaf print, while the other features a plain navy colour. It has a bandeau neckline that hugs your figure and detachable straps to offer more support.
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  • If you are taking a trip to the tropics, add this bikini top to your suitcase. It has a classic all-over snake print with a modern twist: a fresh blue hue that will perfectly match the glittering pool or ocean. It comes with detachable straps, so you can wear it halterneck style for added support. To avoid tan lines, take the straps off and wear it as a bandeau piece. Complete your holiday look with the matching bikini bottoms.
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  • Structured and comfortable, this tankini is ready and raring for your next swim or poolside occasion. An essential for your holiday suitcase, it features an eye-catching print running all the way down the ruched front. Added security can be founded the hidden tummy control panels to ensure a figure flattering fit.
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  • Heading on a beach holiday? Make sure to pack this versatile swimsuit. The all-over snake print is effortlessly glamorous and comes in a range of cool blue hues, just what a poolside outfit needs. For a stroll to the bar, layer yours with a plain sarong and add a wide-brimmed hat. Thanks to smoothing tummy control lining, you can feel confident while you lounge in the sun. Keep the straps in place for extra support or remove them to create a bandeau-style piece.
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  • With its floral design, this bikini top will blend right in with your beachwear favourites. The foil detail gives it a glamorous edge, especially when it catches the sunlight, and the knot detail feels fun and feminine. Fitted cups and adjustable straps are a practical addition to the piece, making sure the shape is just right.
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  • Feel confident as you stroll along the beach in this tankini top. 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 and are adjustable at the back. Team yours with the matching bikini briefs for a coordinated look and tie a colourful sarong around your waist for trips to the cafe.
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  • Specifically designed to flatter the figure, these bikini briefs make beach days all the more enjoyable. They have a high-waisted cut and a panelled ruffle detailing at the middle to smooth your shape. The bold florals feel fresh and fun, and they are brought to life by the glamorous colour combination. Team with the matching bikini top to pull together the perfect holiday look.
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  • Make your next holiday even more exciting with this vibrant foil detail tankini. The chest area features a bold floral print and contrasts against the plain middle section. Complete with tummy control, this piece is designed to help flatter your figure. A knot adds a little extra detail, while the adjustable shoulder straps make sure the item fits perfectly.
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  • 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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