4.8/5 based on over 3,172 reviews

sienna | sexy backless elegant sleeveless boho dress

€124,88 €49,95 Guardar 60%
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Free shipping with tracking via Correos

Over 100,000 happy customers

FREE SURPRISE GIFT with the purchase of 3 or more items 🎁

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FINAL SALE — ENDS TODAY

UP TO -70% DISCOUNT

Now is the time to get your favorite items at irresistible prices. While supplies last!

Siena | Sexy sleeveless elegant backless boho dress

Description:

Fabric: Lightweight chiffon overlay with a soft inner lining for comfort and discretion.

Design: Teardrop neckline detail that evokes classic vintage style and creates an elegant décolletage.

Lace details: Delicate lace trim that adds texture and refined details for a feminine touch.

Silhouette: Fitted at the bust with a defined waist and a long, flowing skirt for elegant and flattering movement.

Sleeves: Sheer or semi-sheer sleeves that complement the lightness of the chiffon and enhance the retro aesthetic.

Closure and fit: Designed for easy dressing and undressing (hidden zipper or button closure), available in various sizes.

Size Bust (cm) Waist (cm) Hip (cm) Length (cm)
S 86–90 68–72 92–96 138
M 90–94 72–76 96–100 139
L 94–98 76–80 100–104 140
XL 98–102 80–84 104–108 141

If our product does not meet your expectations, you can return it within 30 days of receipt.

Before returning the item, please contact our customer service at info@sierrabarcelona.com and let us know the reason for the return so that we can process your request correctly.

We offer free shipping on all orders within Spain.

We send our packages with a tracking code (Track & Trace) via Correos, so you can monitor your order at all times.

You will receive your tracking code by email within 1 to 24 hours after placing your order.

Our store has over 50,000 satisfied customers, who rate us with an average score of 4.7/5.0.

To Mary K. And over 50,000 women love it. Sierrabarcelona

A message from the heart

For over 40 years, fashion has been my passion — a way to convey elegance, confidence, and beauty in every detail.

Today, with a heavy heart, I bid farewell. After a difficult year, I have decided to close my boutique and retire earlier than planned.

To thank you for all these years, I have prepared a final clearance sale with up to -60% off on all collections.

Each garment has been carefully selected with love — designed to make you feel comfortable, confident, and elegant at all times.

Thank you for being part of this journey… and if you're here now, perhaps this is your chance to take a piece of this story with you.

With love,
Sierrabarcelona

What women love about Sierrabarcelona

★★★★★

This floral dress is gorgeous. Feminine without being too over-the-top. The cut is very flattering.

María G.
Madrid — 2 days ago
★★★★★

It fits perfectly. It is comfortable, elegant and very easy to combine with everything.

Katherine M.
Valencia — 1 day ago
★★★★★

I wasn't expecting it to fit so well. The fit is very flattering and the design is beautiful.

Rebecca D.
Seville — 4 days ago
★★★★★

Fast and smooth delivery. The garment is even better than I expected.

Linda S.
Zaragoza — 2 days ago
★★★★★

The quality is noticeable in the details. It is very well made.

Carol W.
Bilbao — 3 days ago
★★★★★

It's one of those garments that makes you feel instantly confident. Very happy with the purchase.

Deborah K.
Alicante — 1 day ago
★★★★★

Very good value for money. I would definitely buy again.

Patricia L.
Granada — 6 days ago

Money-back guarantee

I firmly believe in the quality of our clothing, and I'm confident you'll love it too. That's why we offer a no-questions-asked 30-day money-back guarantee.

If you're not completely satisfied with your purchase, simply return it within 30 days for a full refund, no questions asked.

Frequently asked questions

Shipping within Spain usually takes between 5 to 9 business days. All orders include real-time tracking with Correos so you can know where your package is at all times.

Yes, we offer free shipping on all orders within Spain, with no minimum spend.

Yes, you have 30 days to return your order if you are not completely satisfied. We want you to shop with complete peace of mind.


If you don't like the product, you can return it within 30 days of delivery and receive a full refund, no questions asked.

Simply contact our customer service team by email, and we will guide you through the return process step by step.


Yes, we carefully select each garment to ensure high quality, comfort, and modern style. Our goal is for you to feel confident with every purchase.