Sira | Long party dress

Regular price €69,95 Sale price€49,95 Save 29%
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Devoluciones 30 días de devolución garantizados
🇪🇸 Empresa española desde 2006 en el sector
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The Guest Everyone Will Remember

There are dresses that seem to have been designed to stop time, and the Sira model is, without a doubt, one of them. Imagine yourself on a terrace facing the sea, with the golden light of the sunset and a drink in hand, feeling the lightness of the chiffon caress your skin with every step. It’s not just a party dress; it’s a statement of natural femininity and sophistication that makes you feel confident, powerful, and, above all, yourself. Because when a design fits your body so well, elegance emerges effortlessly.

Sculpture in Motion: The Art of Draping

Crafted from luxurious chiffon, the Sira dress stands out for its exquisite interplay of volumes and textures. The strapless neckline features directional pleats that provide structure and a very contemporary architectural feel, while the built-in bodice defines the silhouette with masterful precision. The master touch is found on the back: a corset-style lace-up closure that is not only aesthetically captivating but also allows the garment to be perfectly adjusted to your contours.

The asymmetrical, pleated skirt flows smoothly into a straight silhouette that is broken by a deep side slit. This detail adds dynamism and an irresistible touch of glamour, allowing for fluid and ethereal movement when walking. It is the ideal piece for a night wedding, a gala, or an exclusive holiday event where you seek a refined and vibrant image.

Real Benefits for Your Next Event

  • Customized fit: Thanks to the adjustable tie at the back, you can adjust the bodice to fit your torso exactly, ensuring comfort and support.

  • Spectacular movement: The lightness of the chiffon combined with the side slit creates a "flowing" visual effect that slims and lengthens the figure.

  • Premium fabric: High-quality chiffon offers a soft texture and an impeccable drape that retains its shape throughout the event.

  • Gala versatility: Its timeless design works equally well in a sophisticated urban setting as in a luxury coastal celebration.

  • Guaranteed comfort: Despite its structured appearance, its regular fit pattern allows you to move with total freedom.

Technical Specifications

  • Material: Luxury chiffon (light and breathable gaze).

  • Design: Asymmetrical strapless neckline with artisanal pleats.

  • Key details: Asymmetrical pleated skirt with high side slit.

  • Closure: Open back with tie adjustment (corset style) to accentuate the figure.

  • Length: Maxi length (ankle-length).

  • Occasion: Perfect for parties, weddings, galas, and luxury vacation wear.

  • Origin: Designed in Spain.

Size Guide

Size (cm) Bust Waist Hips
S 86 66 94
M 91 71 99
L 97 76 104
XL 102 81 109
2XL 107 86 114
3XL 112 91 119


Be the Center of Attention

If you're looking for the ultimate dress for that event marked in red on your calendar, the Sira model is your infallible ally. Its combination of artisanal design and a flattering silhouette ensures an unforgettable presence. Choose your favorite color, from deep navy blue to luminous yellow, and get ready to shine. Add it to your cart now; quantities for this design are limited.

We ship all our orders via Correos, guaranteeing fast, secure delivery with tracking.


  • Fast shipping.

  • Tracking number included.

  • Secure delivery to your home or a collection point.

  • You will receive an email with tracking information once your order has been shipped.

We want you to shop with complete peace of mind.

✅ 30-day returns.

✅ 100% secure payment.

✅ Personalized customer service.

✅ Spanish company with industry experience since 2006.

✅ Thousands of satisfied customers throughout Spain.

If your order does not meet your expectations, our team will be happy to help you.

Our customer support team is available to answer any questions you may have before or after your purchase.

📧 Email support.

📦 Order tracking assistance.

↩️ Fast exchanges and returns processing.

🕒 Response within 24 business hours.

Your satisfaction is our priority.

You can make your purchase with complete confidence.

We accept payments via:


  • Visa

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  • American Express

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  • PayPal

All information is processed through secure encrypted SSL connections to ensure maximum protection of your personal and banking data.

We do not store credit card information or share your data with third parties.

Verified reviews

★★★★★

I have ordered several items and they all arrived as described. No issues and I love the styles.

Marta G.
★★★★


I was looking for a chic yet comfortable everyday garment and this has been a great success. I totally recommend it.

Silvia T.
★★★

I am delighted with the purchase. The fabric quality is excellent, it is very flattering and you can tell it's well-made. I will definitely order more clothes.

Sofía R.
★★★


I was looking for a smart yet comfortable everyday garment and this has been a great choice. I totally recommend it.

Marta L.
★★★★★

I was hesitant about buying online, but I'm pleasantly surprised.

Teresa M.
★★★★

Good quality, correct size, and delivery was faster than expected. Very happy!

Elena T.
★★★★★

Always a wonderful shopping experience! The team is so helpful and the quality is totally worth it.

Laura M.
★★★★★

I am delighted with the purchase. The fabric quality is excellent, it is very flattering, and it is clearly well-made. I will definitely order more clothes.

Clara V.
★★★★

I love the design! The shipping took a bit longer, but the quality totally makes up for it. I would still recommend it!

Daniela S.

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About Us

At Agatha León, we believe that fashion is a way to express who you are. That's why we select clothing and accessories with style, quality, and personality, designed to accompany you at any moment. Our goal is to offer current and versatile fashion that makes you feel good, reflecting an elegant, authentic, and timeless essence.

FREQUENTLY ASKED QUESTIONS

Each product page includes a SIZE GUIDE with detailed information to help you choose the right fit. You can find it next to the size selector.

We take 1 to 3 business days to process your order. Orders placed during the week are usually processed within one business day. However, if you place your order on a Friday afternoon or during the weekend, processing may take a little longer. Once processed, delivery usually takes an additional 6 to 9 business days.

We prioritize customer satisfaction, which is why we offer free shipping throughout Spain. Enjoy exceptional service and fast, secure delivery, at no additional cost.

You can check the status of your order by accessing the Track Your Order section in the menu. Simply enter your tracking number to receive real-time updates on your shipment.

We offer a 30-day money-back guarantee from the moment you receive your package. You just need to ensure that the items are in their original condition and send them back within those 30 days to request a refund.