4.8 / 5.0
Rated by over 1350 customers
Sienna | One-Shoulder Swimsuit with Tummy Control and Flattering Silhouette
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A STYLE THAT TRANSFORMS
If you’re looking for a swimsuit that gives you unparalleled confidence, Sienna is the answer you’ve been searching for. This elegant one-shoulder swimsuit redefines your silhouette with a design crafted to accentuate your natural curves while discreetly concealing the areas you’d rather not show. The innovative structure allows you to move freely and confidently, knowing that every movement will be accompanied by effortless elegance. Whether it’s for a relaxing swim or to catch admiring glances on the beach, Sienna makes you feel like the star of your summer.
4 REASONS WHY YOU DESERVE SIENNA
- Transformative support - The one-shoulder construction with adjustable strap provides you with perfect support and a redefined silhouette, allowing you to focus on having fun instead of constantly adjusting your swimsuit.
- Comfort that liberates - The strategic pleats and ultra-elastic fabric gently embrace your body, moving with you without constricting or marking, for a comfort that lasts all day.
- Elegant distinction - The asymmetrical design adds a touch of modern sophistication that allows you to stand out with discreet class, drawing attention to your unique style rather than excessive exposure.
- Versatility that surprises - From the city pool to the exclusive beach, from the water park to tropical holidays, Sienna perfectly complements every water adventure in your life.
SIZE GUIDE:
| Size (EU) | Bust (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|
| 32-34 (XS) | 79 - 84 | 60 - 67 | 81 - 86 |
| 34-36 (S) | 84 - 89 | 65 - 72 | 86 - 91 |
| 36-38 (M) | 89 - 94 | 70 - 77 | 91 - 97 |
| 38-40 (L) | 94 - 99 | 75 - 84 | 97 - 102 |
| 40-42 (XL) | 99 - 105 | 84 - 93 | 102 - 107 |
| 42-44 (2XL) | 105 - 112 | 90 - 98 | 107 - 113 |
| 44-46 (3XL) | 112 - 118 | 95 - 103 | 113 - 118 |
At Sister Style, you always benefit from free shipping. We cover the shipping costs so that you can shop without any worries and your order will be delivered safely and neatly to your home. Once your order has been shipped, you will receive a track & trace code that allows you to easily track your order until it is delivered to your home.
Track your new look from the moment it is shipped.
Once your clothing has been shipped, you will automatically receive a Track & Trace code via email. This way, you know exactly when to expect your new outfit, and there are no surprises. Ready to step out in style!
Sister Style stands behind its products and therefore offers a 100% satisfaction guarantee.
We offer a 30-day return and exchange policy. If you are not satisfied with your order for any reason, you can return the product and receive a refund!
STOCK CLEARANCE
We’re in full preparation mode for our Spring 2026 collection 🌸
To make room, the very last pieces from our previous collection are now leaving with discounts of up to 70%.
Please note:
These items will not be restocked.
⏰ Valid until tonight at 23:59 after that, everything will be cleared away for next year.
So… did you spot something that made your heart skip a beat?
Then don’t wait now’s your moment.
Love,
Sister Style 🤍
Customer experiences
Share your experience and receive 10% off your next order.
Jessica F.
Quickly resolved!
Fast and super-friendly customer service. My question was resolved immediately, and I was able to track my order right away. Very helpful!
Anna D.
Love it!
I’ve ordered from these lovely people three times already and have been extremely pleased every single time. Beautiful jumpers and genuinely helpful personal advice when choosing the right size. Excellent service throughout.
Clara K.
Arrived on time!
I had a question about returns and received a reply very quickly. The team was incredibly kind and patient, and it’s clear they genuinely care about their customers. My order arrived on time and even exceeded my expectations.
Kim
Good finish!
Sturdy, luxurious, high-quality fabric with a perfect fit. The sweater drapes beautifully and is beautifully finished down to the last detail.
We love our products, and we're confident you'll love them too! That's why we offer a risk-free 30-day trial. If you're not satisfied, you get your money back.
Sisterstyle London is known for reliable quality, personal attention, and excellent service. For many years, we have been helping women find stylish fashion in which they feel confident and comfortable.
Her passion for clothing and perfection lives on today in Sisterstyle.
We love our products, and we're confident you'll love them too! That's why we offer a risk-free 30-day trial. If you're not satisfied, you get your money back.
Sisterstyle London is known for reliable quality, personal attention, and excellent service. For many years, we have been helping women find stylish fashion in which they feel confident and comfortable.
Her passion for clothing and perfection lives on today in Sisterstyle.
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