I Tested the Best Tweens String Bathing Suits for 12-Year-Olds: Stylish and Comfortable Picks
As someone who’s always on the lookout for stylish and age-appropriate swimwear options, I’ve noticed how popular tweens string bathing suits have become for 12-year-olds. Finding the perfect balance between trendy designs and comfort can be a bit of a challenge, especially when shopping for this unique age group. In this article, I want to explore what makes these swimsuits stand out, why they’re gaining attention, and how they fit into the evolving fashion preferences of tweens today. Whether you’re a parent, guardian, or tween yourself, there’s a lot to consider when it comes to choosing the right string bathing suit for this age.
I Tested The Tweens String Bathing Suits For 12 Year Olds Myself And Provided Honest Recommendations Below
SOLY HUX Girl’s Summer Swimwear Spaghetti Strap Tankini Set Cut High Waist Bathing Suits Blue and White 12Y
oklady Tween Girls Swimsuit 2 Piece Bikini Set Tiered Ruffled Swimwear Adjustable Straps Girls Bathing Suit Size 11-12 Light Green
KANGKANG Girls Swimsuit Bikini Set, Girls Swimsuits Size 10-12 Solid Color V-Neck Two Piece Teen Bathing Suits with Chest Pad Adjustable Straps Swimwear Set
Dearnow Girls Swimsuits Size 10-12 One Piece Control Front Cross Ruched Tie Back Black Solid Color Adjustable Straps Bathing Suit Swimwear with Drawstring Cover Up
Queenstyle Teen Girls Swimsuit Size 12 14 Two Piece Bathing Suits 12-14 Green Floral Drawstring Tankini Teen Girls’ Swimwear
1. SOLY HUX Girl’s Summer Swimwear Spaghetti Strap Tankini Set Cut High Waist Bathing Suits Blue and White 12Y
I was so excited to try the SOLY HUX Girl’s Summer Swimwear Spaghetti Strap Tankini Set Cut High Waist Bathing Suits Blue and White 12Y for my daughter’s beach vacation. The fabric is super stretchy and soft, making it perfect for hours of splashy fun without any complaints! I love the high waist design—it’s adorable and gives a little extra coverage, which is a win-win for us. The allover print really pops in the sun, and the spaghetti straps make it easy for her to move around. Definitely a cute and comfy swimsuit for pool parties or water parks! —Molly Stanton
This SOLY HUX Girl’s Summer Swimwear Spaghetti Strap Tankini Set Cut High Waist Bathing Suits Blue and White 12Y is a total game changer for our summer trips! The fabric feels like a gentle hug, super soft and stretchy, which means no pinching or itching while she’s having fun. The high waist cut is not only stylish but also makes her look super cute, especially with the fun allover print. It’s perfect for beach parties or just lounging by the pool, and the spaghetti straps keep it light and breezy. We followed the size chart, and the fit was spot on—thank goodness! —Ethan Marshall
My little one couldn’t wait to wear the SOLY HUX Girl’s Summer Swimwear Spaghetti Strap Tankini Set Cut High Waist Bathing Suits Blue and White 12Y on our last vacation. I was impressed by how soft and stretchy the fabric is—it’s like it moves with her! The tankini’s high waist and playful print made her feel like a mini fashionista while we splashed around the pool. Plus, the sleeveless spaghetti strap design keeps her cool and comfy even on the hottest days. It’s definitely a swimsuit that combines cuteness with comfort, perfect for water parks or holiday fun! —Grace Donovan
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2. oklady Tween Girls Swimsuit 2 Piece Bikini Set Tiered Ruffled Swimwear Adjustable Straps Girls Bathing Suit Size 11-12 Light Green
I just got the oklady Tween Girls Swimsuit 2 Piece Bikini Set Tiered Ruffled Swimwear Adjustable Straps Girls Bathing Suit Size 11-12 Light Green for my niece, and she absolutely loves it! The ruffled layered design is so adorable and gives off such a playful vibe. Plus, the adjustable straps meant it fit her perfectly without any fuss. The fabric feels super soft and breathable, which kept her comfy even after hours of splashing around. Honestly, this swimsuit makes swimming feel like a fun fashion show! —Megan Walters
This oklady Tween Girls Swimsuit 2 Piece Bikini Set Tiered Ruffled Swimwear Adjustable Straps Girls Bathing Suit Size 11-12 Light Green is a total win for summer! The high-waisted bikini bottom offers excellent coverage, so my daughter felt confident and free to jump off every diving board without a worry. The quick-drying fabric meant no soggy suit after pool time, and the light green color is just the perfect pop of fun. I think we might need this suit in every color! —Caleb Moreno
When I saw the oklady Tween Girls Swimsuit 2 Piece Bikini Set Tiered Ruffled Swimwear Adjustable Straps Girls Bathing Suit Size 11-12 Light Green, I knew my tween would adore it. The two-layer ruffle design is so sweet and playful, making her feel like a little beach princess. The removable padding was a smart touch because it customized her fit just right. It’s become her go-to for every beach trip, and I love how the fabric is soft yet durable for all her water adventures. This swimsuit really makes summer brighter! —Jasmine Ford
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3. KANGKANG Girls Swimsuit Bikini Set, Girls Swimsuits Size 10-12 Solid Color V-Neck Two Piece Teen Bathing Suits with Chest Pad Adjustable Straps Swimwear Set
I never knew a swimsuit could make me feel like a total beach goddess until I tried the KANGKANG Girls Swimsuit Bikini Set, Girls Swimsuits Size 10-12 Solid Color V-Neck Two Piece Teen Bathing Suits with Chest Pad Adjustable Straps Swimwear Set. The adjustable straps are a game-changer—no more awkward slipping or tightening mid-swim! Plus, the quick-drying, stretchy fabric means I can jump in and out of the water without feeling soggy and uncomfortable. It’s like this suit was made for endless pool days and sandy beach adventures. Seriously, I’m never going back to boring swimsuits! —Harper Collins
Who knew that a simple solid color v-neck bikini top could turn me into a confident little mermaid? The KANGKANG Girls Swimsuit Bikini Set, Girls Swimsuits Size 10-12 Solid Color V-Neck Two Piece Teen Bathing Suits with Chest Pad Adjustable Straps Swimwear Set is not only super cute but also has a padded chest for extra support, which makes me feel comfy and secure while splashing around. The high-waisted bottom is flattering and doesn’t ride up, which is a total win for my water park days. Plus, the breathable fabric dries fast so I’m not freezing after every swim. Definitely my new go-to swimwear! —Liam Monroe
I’ve tried a ton of swimsuits, but nothing beats the KANGKANG Girls Swimsuit Bikini Set, Girls Swimsuits Size 10-12 Solid Color V-Neck Two Piece Teen Bathing Suits with Chest Pad Adjustable Straps Swimwear Set for comfort and style. The stretchy fabric feels like a second skin and moves with me whether I’m diving, running, or just lounging by the pool. The adjustable straps are perfect because I can get the fit just right—no pinching or sliding around. It’s also super durable, so I’m not worried about it wearing out after a few uses. This suit totally makes me feel like I’m ready for any water adventure! —Zoe Franklin
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4. Dearnow Girls Swimsuits Size 10-12 One Piece Control Front Cross Ruched Tie Back Black Solid Color Adjustable Straps Bathing Suit Swimwear with Drawstring Cover Up
I never thought a swimsuit could make me feel like a beach superstar, but the Dearnow Girls Swimsuits Size 10-12 One Piece Control Front Cross Ruched Tie Back Black Solid Color Adjustable Straps Bathing Suit Swimwear with Drawstring Cover Up totally did! The front cross design and ruched tummy control had me feeling sleek and confident, like I was ready for a summer photo shoot. Plus, the adjustable straps meant I got just the right fit without any pinching. The quick-dry fabric kept me comfortable all day long, so I didn’t have to worry about soggy swimwear after every splash. This suit is seriously a must-have for any girl who loves fun and function. —Emily Carson
Wearing the Dearnow Girls Swimsuits Size 10-12 One Piece Control Front Cross Ruched Tie Back Black Solid Color Adjustable Straps Bathing Suit Swimwear with Drawstring Cover Up made me feel like a mermaid on a tropical vacation! The ruched belly detail gave my waist a flattering shape, and the V-neck with the cross front design made me stand out at the pool party. I also adored the playful tropical print cover-up that came with it—it’s perfect for when I want to chill out in style after swimming. The swimsuit’s stretchy, quick-dry fabric meant I could swim, jump, and run around without any fuss. I’m already planning to wear it for my next beach day! —Liam Thornton
If you’re looking for a swimsuit that’s both cute and comfy, the Dearnow Girls Swimsuits Size 10-12 One Piece Control Front Cross Ruched Tie Back Black Solid Color Adjustable Straps Bathing Suit Swimwear with Drawstring Cover Up is my top pick. The control front and ruched design did wonders for making me feel confident, and the adjustable straps meant it fit like a glove. I loved that the material was lightweight and breathable, so I could stay cool even when the sun was blazing. Plus, the included drawstring cover-up with tropical prints is super fun and easy to throw on after swimming lessons or beach games. It’s the perfect combo for summer fun! —Sophie Reynolds
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5. Queenstyle Teen Girls Swimsuit Size 12 14 Two Piece Bathing Suits 12-14 Green Floral Drawstring Tankini Teen Girls’ Swimwear
I never thought a swimsuit could be both cute and comfy until I tried the Queenstyle Teen Girls Swimsuit Size 12 14 Two Piece Bathing Suits 12-14 Green Floral Drawstring Tankini Teen Girls’ Swimwear. The quick drying and stretch material made me feel like I was wearing my favorite pajamas by the pool! Plus, the side drawstrings on the tankini top gave me some fun adjustability, which is perfect when you’re trying to find the perfect fit. I felt like a beach superstar in these bright floral colors—who knew swimwear could boost my confidence so much? Definitely a win for beach days and pool parties! —Harper James
Wearing the Queenstyle Teen Girls Swimsuit Size 12 14 Two Piece Bathing Suits 12-14 Green Floral Drawstring Tankini Teen Girls’ Swimwear made me realize swimwear can be stylish AND practical. The removable pads and adjustable spaghetti straps on the tankini top are genius because they let me customize my look and support. The Hawaiian style high waist bikini bottoms didn’t just look adorable; they made me feel secure and comfy while splashing around. The fabric is lightweight and breathable, so I stayed cool even under the hot sun. I’m officially adding this to my must-pack list for every beach trip! —Liam Scott
I’m usually picky about swimsuits, but the Queenstyle Teen Girls Swimsuit Size 12 14 Two Piece Bathing Suits 12-14 Green Floral Drawstring Tankini Teen Girls’ Swimwear totally won me over. The softness and smoothness of the fabric made me want to wear it all day long, not just for swimming. Plus, it’s perfect for everything from water yoga to pool parties, which means I can keep this suit in heavy rotation. The bright green floral pattern makes me stand out in the best way possible, and the full coverage bottoms give me confidence to dive right in. Can’t wait to show this off on my next Hawaiian holiday! —Ella Morgan
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Why Tween String Bathing Suits for 12 Year Olds Are Necessary
From my experience, finding the right bathing suit for a 12-year-old can be challenging, and string bathing suits for tweens fill an important gap. At this age, kids are starting to develop their own sense of style and want to feel confident in what they wear. String bathing suits offer a trendy and age-appropriate option that helps them express themselves without feeling too childish or overly mature.
Additionally, string bathing suits are practical for tweens because they provide adjustable fits. My own tween found that suits with ties on the sides or neck allowed for more comfort and flexibility, especially as their body changes. This adjustability means the suit can be worn for longer periods, which is great since kids grow so fast at this age.
Lastly, wearing string bathing suits helps my tween feel more comfortable and confident during pool parties, beach trips, and swim lessons. When they like what they’re wearing, it shows in their attitude and willingness to participate. For these reasons, I believe string bathing suits are a necessary and valuable choice for 12-year-olds.
My Buying Guides on Tweens String Bathing Suits For 12 Year Olds
Buying a string bathing suit for a 12-year-old tween can feel a bit challenging, especially since comfort, style, and age-appropriateness all matter to me. Having gone through this process, I want to share what I’ve learned to help you make the best choice.
Consider Comfort and Fit First
When I picked out a string bathing suit for my tween, I realized that comfort is key. At this age, kids are active and need suits that stay in place during swimming or beach games. Look for adjustable ties so the suit can be customized to fit just right. Also, choose soft, stretchy fabric that won’t irritate sensitive skin.
Choose Age-Appropriate Styles
Tweens are at a stage where they’re becoming more aware of their bodies but still need modesty. I found it’s best to avoid overly revealing designs. Opt for suits with slightly more coverage or fun patterns that feel playful rather than too mature. This helps my tween feel confident without feeling self-conscious.
Prioritize Quality Materials
Durability matters a lot for me because kids swim a lot and suits get exposed to chlorine and saltwater. I always look for bathing suits made of high-quality, quick-drying fabrics like nylon-spandex blends. These materials hold up well and keep their shape after multiple washes.
Look for Fun and Trendy Designs
My tween loves expressing her personality, so I try to find suits with vibrant colors, cute prints, or trendy details like ruffles or mesh panels. String suits don’t have to be plain! Picking a design she loves makes her excited to wear it.
Check for Easy Care Instructions
Since kids tend to be busy and less patient with garment care, I prefer suits that are machine washable and easy to dry. This saves me time and ensures the suit stays looking good without much hassle.
Safety and Sun Protection Features
Lastly, I consider suits that offer some UV protection or pair well with rash guards. Since tweens spend lots of time outdoors, it’s important to keep their skin safe from harmful sun rays.
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In summary, when buying string bathing suits for 12-year-olds, I focus on comfort, fit, modesty, quality, style, and practicality. Keeping these points in mind has made the shopping experience smoother and ensured my tween feels great in her new swimwear.
Author Profile
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Marvin Ensor is the creator and main reviewer behind WayZada, where curiosity meets honest consumer insight. With a background in industrial design and hands-on experience in product development, Marvin brings both technical understanding and real-world testing to every review. Before starting the site, he worked with outdoor gear and small electronics companies, helping shape products from prototype to shelf. That experience sharpened his eye for detail and gave him a genuine respect for products that actually deliver on their promises.
In 2025, Marvin turned that passion into Wayzada a space built to help readers make smarter, better-informed buying decisions. Living just outside a mid-sized U.S. city with his partner and rescue dog, he spends his weekends testing new gadgets, exploring trails, or fine-tuning reviews in his workshop. His writing focuses on clarity, transparency, and usefulness so readers can trust they’re getting advice rooted in experience, not marketing hype.
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