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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85 products found
  • 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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  • 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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  • 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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  • Slip on this swimdress and get ready to dip your toes in the surf. The front panel features nautical stripes against a navy background. It is shaped to create a slim silhouette while a sweetheart neckline and gentle gathers at the bust work together to flatter your figure. Beneath the skirt, a tummy control lining is on hand to give confidence-boosting support. Just add a wide-brimmed hat and relaxed linen shirt to capture classic seaside elegance.
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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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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 - 20% Off
    £22.00
    £17.60
    Summer style calls for high-impact colours and these wide-leg trousers by Isla & Rose deliver. Their bold fabric is lightweight, with a lightly crinkled, cheesecloth-like texture. An elasticated waist makes them easy to slip into, while the matching drawstring is finished with a tassel at each end for an extra bohemian-inspired touch. Add a breezy patterned top for al fresco holiday dinners.
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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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  • 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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  • Set sail for stylish shores in this bandeau swimsuit, featuring a jacquard striped design to lend a timeless nautical vibe to your holiday wardrobe. This piece is cut high on the leg, and features tummy control technology to flatter your figure. It also has detachable straps for a little extra support. Team with sunglasses and a straw hat for a classic poolside look.
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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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  • 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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  • Offer - 20% Off
    £30.00
    £24.00
    When warm weather calls for breezy dressing, turn to this super 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 at the beach or around the pool. 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 floppy hat and sandals for an easy boho outfit. Perfect lightweight beach cover dress to take on your holidays.
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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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  • High waist brief in a classic nautical navy and white stripe print. Featuring a flattering ruched side panel and front seams along with full front and back lining ensuring a modest, comfortable and stylish 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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  • Offer - 20% Off
    £28.00
    £22.40
    Nothing quite says casual poolside style like this Isla & Rose kaftan. It is made from a lightweight and floaty fabric that has a hint of comfortable stretch and the loose fit skims over your figure. To flatter your shape, it has an elasticated and ruched waistband as well as wide flowing sleeves. Of course, it is all about those classic boho-style details, such as the tie-dye pattern in versatile monochromes and the tassel tie on the notched neckline.
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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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  • Slip into the pool feeling fabulous in this halterneck bikini top, which is available exclusively online. Sprinkled with all-over polka dots on a navy base, this piece is sure to become your summer staple: just add the matching bikini bottoms for a coordinated look. With a deep V neckline which crosses over at the front in a knot, it elegantly frames your curves while still providing plenty of support. Adjust the strap at the back of your neck to achieve the perfect fit before taking a dip.
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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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  • 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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  • This bikini top is designed with lightly padded cups to give a gentle uplift and an overall smooth silhouette. The twist front detail adds a feminine touch and the contrast neon trims compliment the stylish leopard print, whilst the over the shoulder adjustable straps ensure a perfect fit.
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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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  • Our standard high waist brief has had a contemporary update with contrast neon trims to compliment the ruched front detailing of this classic style. With full front lining these have been designed to not only flatter but give a modest and feminine look.
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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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  • 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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  • Offer - 20% Off
    £30.00
    £24.00
    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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  • Offer - 20% Off
    £25.00
    £20.00
    Lightweight and versatile, this Isla & Rose playsuit will be top of your holiday packing list. A loose fit means you stay cool, while a hint of stretch in the fabric makes it extra comfortable. Tassels on the hem and an eye-catching monochrome tie-dye print lend a touch of bohemian style to the look. Wear it casually with sandals and statement sunglasses at the beach or dress it up with bold jewellery for dinner.
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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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  • Offer - 20% Off
    £25.00
    £20.00
    To create a breezy boho outfit this summer, just pop on this tiered skirt from the Isla & Rose collection. It has intricate lace panels running through the middle and a tasseled drawstring on the front that you can tighten and tie into a feminine bow. It is made to be comfortable too, from the snug elasticated waistband down to the swishy mid-length hem. Just add a tucked-in T-shirt and sandals for a perfect weekend-ready look.
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  • Offer - 20% Off
    £22.00
    £17.60
    The colour of sunshine, these on-trend trousers by Isla & Rose were made for relaxing on summer days. An elasticated waist with a coordinating tasselled drawstring makes it easy to pull them on and find your perfect fit. Thanks to gently stretchy cuffs, the lightweight fabric falls in a relaxed, drapey shape. Match the contrasting piping around the pocket and down the leg seam with a casual black T-shirt and sandals.
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  • 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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  • Offer - 20% Off
    £22.00
    £17.60
    This Isla & Rose top is a little touch of wardrobe heaven. It is made from a floaty viscose fabric that feels lightweight and has a gently crinkled texture. To give it a fluttery and feminine shape, it has ruffled angel sleeves that are cut wide for comfort. This design comes in eye-catching hues that are perfectly on-trend this season.
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  • 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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  • Offer - 20% Off
    £22.00
    £17.60
    This Isla & Rose top is a little touch of wardrobe heaven. It is made from a floaty viscose fabric that feels lightweight and has a gently crinkled texture. To give it a fluttery and feminine shape, it has ruffled angel sleeves that are cut wide for comfort. This design comes in eye-catching hues that are perfectly on-trend this season.
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  • Mix & Match Tankini top in a classic nautical navy and white stripe print featuring a bow tie detail to the centre front and rouched tie side detail for a flattering shape. Over the shoulder straps, soft cups, full lining with bust support ensure extra comfort.
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  • Update your holiday wardrobe with this flattering wrap bikini set in bold and zesty colours. The top features a colour block wrap detail to the front, moulded underwire cups and has detachable straps to avoid any unwanted tan lines. Paired with a high waist brief with co-coordinating wrap detail.
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  • Offer - 20% Off
    £28.00
    £22.40
    Looking for a flowing maxi dress that is endlessly versatile? Try this Isla & Rose design in an on-trend colour. Made from a lightweight and stretchy viscose, it is supremely comfy and skims over your figure for a flattering fit. At the neckline, a deep V on the front and back give it a retro-inspired shape (and perfectly frame your jewellery). Simply change your sandals to heels to take this one from daytime to evening events.
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  • A stylish swim skirt in a classic nautical navy and white stripe print. Featuring an elasticated waist, an inner swim brief and front lining ensures modesty as well as comfort and style.
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