

🌊 Dive into durability and eco-friendly style — because your swimwear should work as hard as you do!
The Arena Women's Marbled Challenge Back Swimsuit combines cutting-edge MaxLife Eco fabric technology with sustainable design, featuring 50% recycled polyester for exceptional chlorine resistance and UPF 50+ sun protection. Its open back and thin straps optimize movement and reduce drag, making it perfect for competitive and frequent swimmers. Certified OEKO-TEX STANDARD 100, this quick-drying, eco-conscious swimsuit offers long-lasting performance and skin-safe comfort.






























| Care instructions | Hand Wash Only |
| Closure type | Pull On |
| Fabric type | 100% Polyester |
| Origin | Imported |
G**W
Great training suit
Fits great! Great quality! I’d buy again!
J**L
Sizing is true
10/10
N**A
Cute, size down
Love the pattern, quick to dry, first Arena swim suit so I would order a different size (size down) or different shape, just because it felt a little looser in the upper half than previous Jolyns. Still love to use as practice suit though.
A**X
Best swimsuit i've ever had
I've had a few sporty one-piece swimsuits before, such as from Speedo, and I think this one stands out in quality and design. With my measurements around 34 bust, 28 waist, and 40ish hips, took a chance on a 32. Pulling it up, i thought there was no way i'd get it on, but once i managed to pull it up, it fit perfectly. Super nice stretchy but firm fabric, straps with just enough stretch but tight enough to hold my bust perfectly. It does sit pretty high on the side of my hip, but that is a typical professional swimsuit style. This was my first one-piece with a bare back, and I love it. So nice to not have that extra fabric clinging to my back. I feel so free, yep well-contained. The color is super vibrant, and a true navy/red (images looked more pink to me, but the red is a red indeed). Seems like something that would hold up in chlorine over time too. 100% 10/10 recommend
A**R
Size down
I got a 32. It Runs big. Im 5'7", 150lbs 29" waist, 32" bust, 38.5" hips. I feel like this suit runs big. The straps are kind of long & flimsy. It doesn't really snatch my mommy apron belly like other brands. The bottom coverage is medium but stays in place. It's comfortable enough so im going to keep it for a back-up but this wont be my main workout suit. I realize my measurements are wonky for the sizing of this suit according to the sizing chart. I typically wear 34-36 in speedo & 34 in tyr.
A**E
Great Swimsuit from Arena
I recently ordered this swimsuit for my daughter, who swims regularly. It's been a fantastic choice for her aquatic activities, offering a perfect blend of comfort and durability. The fabric quality is top-notch, exactly what you'd expect from a brand of this caliber. One of the standout features is the innovative dual-layer design. The thicker material in the abdominal and torso areas provides exceptional support, while the single-layer bottom ensures a comfortable fit. The stitching is impeccable, and the overall fit is true to size. However, I recommend checking the size chart carefully. Its true to the current sizes my daughter has. As for the color, it's absolutely breathtaking! It's a vibrant and eye-catching shade that my daughter loves. In conclusion, I'm thoroughly impressed with this swimsuit and would wholeheartedly recommend it to any swimmer seeking a comfortable, durable, and stylish option. It's a fantastic choice for both recreational and competitive swimmers.
M**Y
Love this brand
I'm a competitive swimmer and love swim suits that make you feel snatched. This suit is made from 100% polyester and sustains chlorine much longer than the cotton versions so make sure to always stick with 100% polyester. I love the thin straps because it gives you less of a tan line in the summer and it fits true to size. It feels great on and the quality is top notch. Love this brand.
C**S
LOVE THIS
I ordered this not having purchased a training suit for years. In that time I have definitely gained and shifted weight, so I was super nervous it wasn't going to fit. This suit is like magic, fitting perfectly! It actually covered my rear more than I anticipated and doesn't ride up. Note that it is cut narrow from front to back, meaning the front does expose my side more than my old training suit, but it still fit REALLY well. I haven't worn an Arena suit in decades, and this one may have converted me!
Trustpilot
3 days ago
3 weeks ago