4.7 / 5 out of 7000+

Nyx – Lightweight Summer Dress

Regular price Sale price£49.95 GBP Save 50% £100.00 GBP
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50% OFF

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Ships by Sun 5 Jul
United Kingdom

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Sticky summer days can make getting dressed feel like hard work!

Imagine feeling a soft, breathable fabric glide over your skin as a warm breeze brushes past, keeping you cool and completely at ease. Now you’re walking through sunlit streets or along the beach, looking effortlessly elegant without ever feeling overdressed or overheated.

Light as air comfort

The lightweight, breathable fabric keeps you feeling fresh even on the warmest days. It allows air to flow naturally, preventing that heavy, clingy feeling some summer dresses create.

Flattering relaxed fit

The loose, flowing cut gives you freedom to move without sacrificing shape. It drapes softly over the body, creating an elegant silhouette that feels as comfortable as it looks.

From beach to garden party

This dress transitions seamlessly from casual afternoons to more dressed-up summer evenings. Pair it with sandals for a relaxed beach look, or add wedges and simple accessories for an effortless party outfit.

Easy care, no fuss

Machine washable and colour-resistant, it keeps its fresh look wear after wear. No complicated care routine, no stressful ironing, just wash, dry and wear again.

Effortless everyday elegance

Its timeless design means you’ll reach for it again and again each summer. When you need something quick, reliable and beautiful, this dress is already waiting.

The Nyx lightweight summer dress isn’t just something you wear, it’s how you feel when the sun is out and you want to look radiant without trying too hard. Once it’s part of your wardrobe, summer dressing becomes the easiest part of your day.

All our UK orders are shipped via Royal Mail and include Track & Trace, so you can easily follow your shipment.

We offer free shipping on all orders, ensuring your package arrives at no extra cost.


At Arthur & Margaret London, we offer a 30-day money-back guarantee
for a worry-free shopping experience. If you are not completely
satisfied with your purchase, you can return it.


At Arthur & Margaret London, customer satisfaction is our priority.
Our customer service team is always here to help and ready to assist you
with any questions or concerns.

Edith P. and 7.0k+ other women love Arthur & Margaret London

Loved by women across the UK

★★★★★

Just received my order from Arthur & Margaret London and I'm so pleased! The dress is even more beautiful in person, with lovely quality and a perfect fit. It arrived quickly and was beautifully packaged. I can't wait to wear it and will definitely be ordering again.

Amelia T.
London – 12 hours ago
★★★★

Really happy with my purchase

from Arthur & Margaret London 🤍 Beautiful quality, lovely details, and such an easy shopping experience. Definitely coming back!

Charlotte B.
Manchester – 1 day ago
★★★★

So happy with this dress 🤍

Comfortable, flattering and exactly the effortless style I was looking for. Love how easy it is to wear — definitely a new favourite.

Hannah C.
Birmingham – 2 days ago
★★★★★

Very happy with my purchase from Arthur & Margaret London. The quality is excellent, the fit is perfect, and everything feels beautifully made. The whole experience, from ordering to delivery, was smooth and professional. I’ll definitely be shopping here again.

Eleanor P.
Leeds – 3 days ago
★★★★★

This dress is exactly what I was looking for. It's flattering, comfortable, and so easy to wear. The quality is lovely, and I felt great in it from the moment I put it on. I've already had compliments and will definitely be ordering from Arthur & Margaret London again.

Jessica T.
Liverpool – 5 days ago

Summer Sale

we're offering exclusive savings across our collection.

This is your chance to shop some of our most-loved styles at special seasonal prices before we introduce new arrivals.

Thank you for your continued support – it truly means a lot to us

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Why Women Choose Us

At Arthur & Margaret London, we believe fashion should be elegant, comfortable, and effortless. That's why we carefully create timeless pieces designed to make women feel confident every day.

Whether you're a loyal customer or discovering our brand for the first time, we invite you to explore our collection and experience the quality, craftsmanship, and attention to detail that define every piece.

Thank you for being part of our journey.

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 free shipping incl. Track & Trace to the United Kingdom!

SECURE PAYMENT

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

FAQs

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

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.

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!