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4.7/5 | Based on 1200+ Reviews

Sienna | Elegant Formal Coat

$145.00
$80.00 | Summer Sale
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SUMMER SALE

Due to the high order volume, our stock is very limited...
If you are still able to press the 'Add to Cart' button, there's still some stock left!

The Sienna Elegant Formal Coat blends sophistication with practicality, offering a sleek, tailored fit that elevates any look. Whether paired with office attire or evening wear, this coat ensures a polished and refined appearance for any occasion.

✔ Tailored Fit: A structured design that enhances your silhouette while providing a flattering look.
✔ Double-Breasted Closure: Adds a sophisticated touch while ensuring a secure and stylish fit.
✔ Functional Pockets: Conveniently designed to keep essentials close without compromising elegance.
✔ Versatile Styling: Effortlessly complements business attire or evening outfits for a refined finish.

Size  Size (UK) Length (cm/ in) Bust (cm/ in) Shoulder (cm/ in) Sleeve (cm/ in)
M 10 85 / 33.5 103 / 40.6 48.5 / 19.1 53 / 20.9
L 12 86 / 33.9 107 / 42.1 50 / 19.7 54 / 21.3
XL 14 87 / 34.3 111 / 43.7 51.5 / 20.3 55 / 21.7
2XL 16 88 / 34.6 115 / 45.3 53 / 20.9 56 / 22.0
3XL 18 89 / 35.0 119 / 46.9 54.5 / 21.5 56 / 22.0
4XL 20 90 / 35.4 123 / 48.4 56 / 22.0 57 / 22.4

We offer free shipping on all orders, worldwide. Every package is shipped with a tracking number so you can always monitor your order.

You will receive your tracking information by email within 24–72 hours after placing your order.

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

Before returning the goods, please contact our customer service at support@theharringtonsisters.com and let us know the reason for the return so we can process your request correctly.

Our customer service is available 24/7 to answer all your questions and comments. Whether you need advice on a product or help with an order, we are here to support you.

Don’t hesitate to contact us; we’re happy to help!

Please contact us at support@theharringtonsisters.com

COMBINE AND GET UP TO 20% EXTRA OFF

OUR CUSTOMERS TELL IT BETTER THAN WE DO

★★★★

Really happy with my order overall. The blouse I received is beautiful and perfect for spring weather. I also appreciated that customer service kept me updated about my shipment. I’ll definitely order again.

Olivia W.
★★★★★

This was my first order from The Harrington Sisters and I’m impressed. The packaging was neat, the item looked exactly like the photos and the quality feels great. It’s always nice when an online order actually meets expectations.

Danielle S.
★★★★★

I had a small question about sizing before ordering and customer support was really helpful and quick to respond. The dress I received fits perfectly and the material feels very comfortable. Overall a really nice shopping experience.

Lauren H.
★★★★

Ordered a sleeveless knit top and it’s such a good staple for warmer weather. It’s simple but really flattering and easy to combine with different outfits. Shipping took a bit longer than expected but the item itself is great.

Natalie C.
★★★★★

I ordered the floral summer dress and it’s honestly perfect for warm days. The fabric feels light and breathable and the print looks even prettier in person. I wore it to brunch with friends last weekend and got a lot of compliments. Definitely a new favorite for spring.

Chloe M.
★★★★★

I ordered a flowy summer dress for an upcoming trip and I absolutely love it. The fabric is light and comfortable which is perfect for warmer days. It fits beautifully and the color looks exactly like the photos. Already planning to wear it a lot this spring and summer.

Ashley M.
★★★★

Bought one of their linen blouses and it’s such a nice piece for spring. It feels breathable and looks very elegant with simple jeans or shorts. I’ve worn it a couple times already and it holds its shape really well.

Brooke T.
★★★★★

The lightweight cardigan I ordered is perfect for cooler spring evenings. It’s soft, comfortable and really easy to style with dresses or skirts. The quality honestly surprised me in a good way.

Megan L.
★★★★★

I bought a summer midi skirt and it’s even prettier in person. The fabric flows beautifully and it feels very feminine and elegant. Paired it with a simple top and sandals and it looked amazing.

Jessica R.

FREQUENTLY ASKED QUESTIONS

Yes, we offer free shipping on all orders. No hidden fees, no surprises at checkout — you'll see the full breakdown before you pay.

Each product page includes a detailed size chart to help you find your perfect fit. We always recommend comparing the chart to a similar item you already own.

Not sure which size is right for you? Use our free Fit Quiz — built specifically for each product — to get a personalized size recommendation in seconds. If you're still in between sizes, we generally recommend sizing up for the most comfortable fit. Our support team is also happy to help!

Orders are typically processed within 3 business days after being placed.

Once your order is confirmed, you will receive an email with your order number. To track your order, simply visit our Order Tracking page and enter your order number or email address.

If you experience any issues or have questions, visit our Contact Page to connect with our support team. We’re here to assist you promptly.

Bootstrap 5 Example

FREE FAST SHIPPING

Enjoy free shipping on all orders, on us. Find something you love and we will cover the shipping. Every order ships free, straight to your door.

30-DAY MONEY-BACK GUARANTEE

At The Harrington Sisters, you can shop with peace of mind thanks to our 30-day money-back guarantee. Simply return your items within 30 days.

SECURE PAYMENT

Your payment information is processed securely. We accept Apple Pay, Google Pay, Mastercard, Shop Pay, and Visa

ABOUT THE HARRINGTON SISTERS

The Harrington Sisters is built on a simple belief: that great style has no age limit. We create collections for women who value timeless design, quality that lasts, and the quiet confidence that comes from wearing something that feels truly you.

Our approach is thoughtful and unhurried. Every piece is chosen with care — versatile, elegant, and made to move with you through the seasons rather than in and out of them. We're drawn to fabrics that feel good, silhouettes that flatter, and details that make the everyday feel a little more considered.

This summer, our Summer Collection brings together the styles we're proudest of — pieces that reflect everything the brand stands for.

Thank you for being here. We hope you find something you'll love.

The Harrington Sisters

FEEL FREE TO CONTACT US

Do you have a question? Our support team is at your service. Feel free to contact us at support@theharringtonsisters.com

Monday to saturday: 9:00 AM – 6:00 PM
Sunday: 10:00 AM – 3:00 PM


We also respond outside of these hours thanks to our 24/7 customer support.

Legal Links

The Harrington Sisters

Contact email address: support@theharringtonsisters.com

Phone number: +31 6 33 83 84 55

Business address: Borné 62, 4374DB, Zoutelande, Netherlands

Registration number: 94618615

VAT number: NL005097086B24

© 2026 The Harrington Sisters

Sienna | Elegant Formal Coat