4.6 Out of 1284+

SIZAINE™ – Comfy Plus Size Casual Flowy Summer Dress

£54.95 £90.00 Save 39%
/
50% OFF
Shipping Free shipping with Royal Mail
Secure checkout Secure checkout using credit card
Loved by women Loved by 50,000+ women
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Only 5 items left in stock!

SALE UPDATE: Due to high demand during our Birthday Sale, only a limited number of items are left! If you can click “Add to Cart”, it is still available!

Effortless Style Meets Comfort

Welcome the season in the SIZAINE™ Comfy Plus Size Casual Flowy Summer Dress, crafted for the modern woman who values both ease and elegance. With its graceful flow, this dress is perfect for sunny days out or relaxed dinners with friends.

Why Choose SIZAINE™ – Comfy Plus Size Casual Flowy Summer Dress?

  • Flattering fit – Designed with a flowy silhouette that complements all body types, ensuring you feel beautiful and confident.

  • Versatile style – Perfect for any occasion, whether it's a casual brunch or an evening out, this dress adapts effortlessly to your lifestyle.

  • Lightweight comfort – Enjoy a breezy feel throughout the day with breathable fabric that keeps you cool even in warm weather.

  • Easy care – Designed for your busy life, this dress is easy to care for, allowing you to spend more time enjoying your day.

SPECIFICATIONS:

  • Available sizes: Plus sizes for all body types
  • Style: Casual flowy dress for effortless styling

We offer free UK delivery on all orders.

Your order will be carefully shipped via Royal Mail with full Track & Trace, so you can follow it every step of the way.

Tracking details will be sent to you via email within 1–24 hours of 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 info@jamessarah-london.com and let us know the reason for the return so we can process your request correctly.

Need Help? We're Here for You

Do you have a question about your order, our products, or need personal advice?
Our support team is happy to help and make sure you have the best experience with Beaumont Vancouver.

Feel free to contact us anytime and we’ll get back to you as soon as possible.

Email: info@jamessarah-london.com

Sophie R. and 10k+ other women love James & Sarah London!

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Worn and loved by women across the UK

Elegant, comfortable, and surprisingly high quality. The cut is super flattering. Love it more than expected.

Verified

Olivia M.

The fabric feels incredibly soft and luxurious. Fits beautifully and looks exactly like the photos. I’d absolutely buy again.

Verified

Jasmine L.

This piece exceeded my expectations. Great fit, lovely material, and fast delivery. I’ve already worn it twice.

Verified

Emily R.

Beautifully made and feels premium. The color is even better in person. Very happy with my order.

Verified

Sarah T.

Perfect for both casual and dressed-up looks. It hugs the body just right. Definitely a wardrobe favorite.

Verified

Natalie B.

I’m impressed with the quality and design. It feels high-end but still affordable. Highly recommend it.

Verified

Lauren G.

This is my new go-to piece. Soft, stylish, and super versatile. I’ll be keeping an eye on new releases.

Verified

Cloe D.

Elegant, comfortable, and surprisingly high quality. The cut is super flattering. Love it more than expected.

Verified

Olivia M.

The fabric feels incredibly soft and luxurious. Fits beautifully and looks exactly like the photos. I’d absolutely buy again.

Verified

Jasmine L.

This piece exceeded my expectations. Great fit, lovely material, and fast delivery. I’ve already worn it twice.

Verified

Emily R.

Beautifully made and feels premium. The color is even better in person. Very happy with my order.

Verified

Sarah T.

Perfect for both casual and dressed-up looks. It hugs the body just right. Definitely a wardrobe favorite.

Verified

Natalie B.

I’m impressed with the quality and design. It feels high-end but still affordable. Highly recommend it.

Verified

Lauren G.

This is my new go-to piece. Soft, stylish, and super versatile. I’ll be keeping an eye on new releases.

Verified

Cloe D.

Elegant, comfortable, and surprisingly high quality. The cut is super flattering. Love it more than expected.

Verified

Olivia M.

The fabric feels incredibly soft and luxurious. Fits beautifully and looks exactly like the photos. I’d absolutely buy again.

Verified

Jasmine L.

This piece exceeded my expectations. Great fit, lovely material, and fast delivery. I’ve already worn it twice.

Verified

Emily R.

Beautifully made and feels premium. The color is even better in person. Very happy with my order.

Verified

Sarah T.

Perfect for both casual and dressed-up looks. It hugs the body just right. Definitely a wardrobe favorite.

Verified

Natalie B.

I’m impressed with the quality and design. It feels high-end but still affordable. Highly recommend it.

Verified

Lauren G.

This is my new go-to piece. Soft, stylish, and super versatile. I’ll be keeping an eye on new releases.

Verified

Cloe D.

Elegant, comfortable, and surprisingly high quality. The cut is super flattering. Love it more than expected.

Verified

Olivia M.

The fabric feels incredibly soft and luxurious. Fits beautifully and looks exactly like the photos. I’d absolutely buy again.

Verified

Jasmine L.

This piece exceeded my expectations. Great fit, lovely material, and fast delivery. I’ve already worn it twice.

Verified

Emily R.

Beautifully made and feels premium. The color is even better in person. Very happy with my order.

Verified

Sarah T.

Perfect for both casual and dressed-up looks. It hugs the body just right. Definitely a wardrobe favorite.

Verified

Natalie B.

I’m impressed with the quality and design. It feels high-end but still affordable. Highly recommend it.

Verified

Lauren G.

This is my new go-to piece. Soft, stylish, and super versatile. I’ll be keeping an eye on new releases.

Verified

Cloe D.

Meet James & Sarah

Sixteen years ago, James and Sarah started with a simple dream: creating timeless clothing that women would truly love to wear — elegant, comfortable pieces designed for everyday life.

What began as a small idea slowly grew into James & Sarah London, built on the belief that true style should feel effortless, refined, and made to last beyond trends.

And this year feels more special than ever.

As we celebrate 16 years of James & Sarah London, we’re also celebrating Sarah’s birthday and our daughter Lily turning 10 — a reminder of how quickly the years pass, and how beautiful it is to grow through every chapter together.

To honour this special moment, we’re proud to introduce our Birthday Sale — a celebration of family, the women who have supported us along the way, and the timeless pieces that continue to bring us together.

Because James & Sarah London was never about fast fashion.

It was always about pieces that feel like home.

FAQS

Yes, we offer free premium shipping because we value you as a customer and want to provide you with the best service.

You can return items within 30 calendar days of receiving them.

  • Return shipping costs are the buyer’s responsibility.
  • Approved refunds will be issued to your original payment method.

Once your order is confirmed, you will receive an email with your order number. To track your order!

You can pay safely and securely with the following payment methods: Credit Card, Visa, Mastercard, PayPal, Apple Pay, Google Pay, Maestro, and Shop Pay.

Yes, once you've placed your order, a confirmation will be sent to your email inbox. If you don’t see it, feel free to reach out to our customer service team, we’re happy to help you right away.

30-DAY MONEY-BACK GUARANTEE

We offer a 30-day return period. Feel free to return any item within 30 days if you are not completely satisfied.

FREE DELIVERY

We offer complimentary UK delivery with full Track & Trace on every order.

SECURE PAYMENT

At James & Sarah London , you can securely and conveniently pay for your order using credit card.

SIZAINE™ – Comfy Plus Size Casual Flowy Summer Dress

SIZAINE™ – Comfy Plus Size Casual Flowy Summer Dress

£90.00 £54.95