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Finding the perfect fit for days by the water is easy with size 12 swimwear designed to let you shine. Explore a wide range of stylish options that celebrate your curves and keep you feeling confident at the beach or pool. Whether you’re planning a relaxing getaway or gearing up for fun in the sun, discover size 12 swimwear that matches your unique style and makes every splash memorable.

Ruched Twist Front One Piece Swimsuit
by Swimsuits For All

A stylish one-piece swimsuit with ruched details, twist-front neckline, and UPF 50 sun protection.

~~$104.00~~

From $55.20
Save up to $49 (47%)

What customers like:
Quality fabric Flattering fit Good support Stylish design Comfortable wear
Side Slit Swim Skirt
by Swimsuits For All

A fit-to-flatter A-line swim skirt with built-in brief, side slits, and UPF 50 protection.

~~$50.00~~

From $40.00
Save up to $10 (20%)

What customers like:
Great fit High quality Flattering shape Versatile style Comfortable material
Valentine Ruched Bandeau Bikini Top
by Swimsuits For All

A versatile twist-front bikini top with removable straps, UPF 50 protection, and comfortable support.

~~$64.00~~

From $44.80
Save up to $19 (30%)

What customers like:
High-quality material Versatile design Supportive structure Comfortable fit Flattering style
V-Neck Twist Tankini Top
by Swimsuits For All

A white tankini top with a V-neck, adjustable straps, and UPF 50 sun protection.

~~$110.00~~

From $76.30
Save up to $34 (31%)

What customers like:
High quality fabric Flattering fit Comfortable wear Supportive design Vibrant color options
Mid-Rise Full Coverage Swim Brief
by Swimsuits For All

A black nylon/spandex swim brief offering full coverage and UPF 50 UV protection.

~~$40.00~~

From $28.00
Save up to $12 (30%)

What customers like:
Great fit High quality fabric Comfortable wear Full coverage Versatile design
Triple String Swim Brief
by Swimsuits For All

A white, fully lined swim brief with triple-string sides, offering full coverage and UPF 50 protection.

~~$40.00~~

From $12.00
Save up to $28 (70%)

What customers like:
High quality material Versatile style Flattering design Great coverage Comfortable fit
Cut Out Mesh Underwire One Piece Swimsuit
by Swimsuits For All

A chic black one-piece swimsuit featuring mesh cutouts, underwire support, and tummy-control lining.

~~$125.00~~

From $51.60
Save up to $73 (59%)

What customers like:
High quality Flattering fit Good support Unique mesh detail Sexy design
Side Tie Swim Brief
by Swimsuits For All

A fully lined, low-waist swim brief with side ties, offering UPF 50 protection in 80% Nylon.

~~$40.00~~

From $2.97
Save up to $37 (93%)

What customers like:
Vibrant color Flattering fit Comfortable material Adjustable side ties Great coverage
High Waist Cheeky Swim Brief
by Swimsuits For All

A high-waist bikini brief in nylon/spandex with cheeky coverage and UPF 50 sun protection.

~~$44.00~~

From $23.00
Save up to $21 (48%)
Crochet Adjustable Swim Skirt
by Swimsuits For All

A black crochet swim skirt with adjustable ties and tummy-smoothing Power Mesh lining.

~~$58.00~~

From $46.40
Save up to $12 (20%)
Shimmer Shirred Ring Bandeau Bikini Top
by Swimsuits For All

A shimmery black bandeau bikini top with gold-tone accents and UPF 50 sun protection.

~~$78.00~~

From $60.00
Save up to $18 (23%)
Liquid Motion High Neck Adjustable Bikini Top
by Swimsuits For All

A black high-neck bikini top with adjustable crisscross straps and UPF 50 sun protection.

~~$60.00~~

From $24.98
Save up to $35 (58%)
Unique Vintage White & Black Polka Dot Ruffle Sheath Swimsuit
by UNIQUE VINTAGE

A retro one-piece swimsuit with black polka dots, mesh ruffles, and a flirty skirted bottom.

$98.00
One Shoulder Color Block Cutout One Piece Swimsuit
by Swimsuits For All

A metallic one-shoulder swimsuit with color block design, side cutout, and UPF 50 protection.

~~$110.00~~

From $19.98
Save up to $90 (82%)
White Off The Shoulder Swim Top
by UNIQUE VINTAGE

An elegant off-the-shoulder swim top in crisp white with playful puff sleeves and padded support.

$54.00
Ralia Pant
by TANYA TAYLOR

A high-waisted cotton voile pant in Maritime Blue Leopard print with a ruffled elastic waistband.

~~$295.00~~

From $148.00
Save up to $147 (50%)

Size 12 Swimwear

When shopping for size 12 swimwear, it's all about discovering pieces that make you feel confident, comfortable, and ready for every sun-soaked adventure. Whether you’re planning a relaxing day by the pool, a spirited game of beach volleyball, or a spontaneous dip in the ocean, the right swimwear can make all the difference. Many women find that size 12 offers a perfect balance—room for movement, flattering silhouettes, and a wide range of styles to match your personality and needs. From classic one-pieces with supportive panels to chic bikinis with adjustable features, size 12 swimwear is designed to celebrate your curves and keep you feeling secure. For those who love a little extra coverage or want to make a bold statement, look for details like ruched fronts, high-waisted bottoms, or playful cutouts. Adjustable straps, removable cups, and supportive underbands are thoughtful touches that ensure a custom fit, whether you’re lounging with a book under a striped umbrella or chasing little ones along the shoreline.

Late summer is the perfect time to refresh your swimwear drawer, especially as vacations, pool parties, and last-minute getaways continue to pop up on the calendar. Swimwear in size 12 makes a thoughtful gift for friends or loved ones who enjoy water activities or simply appreciate high-quality, well-fitting pieces for their warm-weather wardrobe. Picture wrapping up a vibrant swimsuit for a birthday, bridal shower, or even as a “just because” gesture to encourage someone’s self-care journey. When choosing swimwear for yourself or others, consider not only style preferences but also practical needs—think chlorine-resistant fabrics for frequent swimmers, UPF protection for sun lovers, or quick-drying materials for those always on the move. Many women appreciate having a few different options on hand: a sleek, athletic suit for lap swimming, a fun printed set for beach days, and a glamorous piece for resort lounging. And if you’re exploring a wider range of sizes for yourself or someone special, our collection extends beyond size 12, including options like Plus Size 22 Swimwear to ensure everyone finds their ideal fit.

As you browse for your next favorite swimsuit, imagine the moments you’ll create—splashing in the surf, sharing laughter with friends, or savoring a sunset stroll along the water’s edge. The right swimwear isn’t just about how it looks, but how it makes you feel: empowered, at ease, and ready to enjoy every moment of the season. With thoughtful design details and a focus on both style and support, size 12 swimwear opens the door to endless possibilities, whether you’re a seasoned swimmer, a casual sunbather, or someone rediscovering the joy of summer fun. Dive in, find what feels right for you, and let your swimwear reflect your unique spirit all season long.