Name: PLUNGE OPEN-BACK MAXI DRESS
Brand: COS
SKU: 1183356001
Price: 52.5 USD
Availability: OutOfStock

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We are really pleased to offer you a great range of fashion with a wide selection of cosmetics. However, a few of our cosmetics contain flammable substances and therefore have delivery restrictions. Eg. nail polish, certain perfumes and nail polish removers as well as pressurized spray cans. At the same time, all our beauty items are tested to ensure that they are safe to use. It's only if you wish to return or exchange items containing flammable substances that you need to be aware that there are special transportation requirements.

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This item cannot be returned as it is part of final sale

Please read our [frequently asked questions](/en-us/customer-service/faq/).

Questions?

We’ve extended our returns period over the festive season to offer more flexibility when you shop online. Any orders placed between November 1, 2025, and December 24, 2025, can be returned up to and including January 31, 2026. 

We hope you will love everything that you order from us but if something isn’t quite right, you have 30 days from the purchase date to return any full-price item(s) and 14 days from the delivery date to return any sale item(s) that are not marked 'Final Sale' for a full refund to the original payment method for the order. We ask that items are returned clean, unworn and have all their tags on.

A $7 return fee will be deducted from your refund should you choose to use the prepaid label included with your order.

We hope you will love everything that you order from us but if something isn’t quite right, you have 30 days from the purchase date to return any full-price item(s) and 14 days from the delivery date to return any sale item(s) that are not marked 'Final Sale' for a full refund to the original payment method for the order. We ask that items are returned clean, unworn and have all their tags on.

A $7 return fee will be deducted from your refund should you choose to use the prepaid label included with your order.



Please refer to our [returns](/en-us/customer-service/returns) page for more information.

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It's just as easy to return a nail polish as it is to return a pair of jeans.

The easiest way to return any beauty product classified as dangerous goods is to use the original parcel because it already has the LQ.

Dangerous goods label (pictured below). Just make sure to fill the box with paper or filler so the product will stay in place.

The COS womenswear team paid special attention to silhouette when designing this dress from our new collection. Bound around the edges for structure, it's shaped with an A-line maxi hem and has a deep, plunging neckline, streamlining seams through the skirt and a rounded cutout at the back. We selected an ECOVERO™ viscose-blend cloth, the fibers of which are derived from certified renewable wood sources. Regular fitSleeveless, binding around the necklineECOVERO™ is a trademark of Lenzing AG. Viscose fibers are derived from certified renewable wood sources using a lower environmental impact process 54% Viscose, 46% ECOVERO™ viscose / Machine wash Front length of size 6 is 54.72&quot; / Model wears a size 6

The COS womenswear team paid special attention to silhouette when designing this dress from our new collection. Bound around the edges for structure, it's shaped with an A-line maxi hem and has a deep, plunging neckline, streamlining seams through the skirt and a rounded cutout at the back. We selected an ECOVERO™ viscose-blend cloth, the fibers of which are derived from certified renewable wood sources. <ul><li>Regular fit</li><li>Sleeveless, binding around the neckline</li><li>ECOVERO™ is a trademark of Lenzing AG. Viscose fibers are derived from certified renewable wood sources using a lower environmental impact process</li></ul> 54% Viscose, 46% ECOVERO™ viscose / Machine wash Front length of size 6 is 54.72&quot; / Model wears a size 6

PLUNGE OPEN-BACK MAXI DRESS

The COS womenswear team paid special attention to silhouette when designing this dress from our new collection. Bound around the edges for structure, it's shaped with an A-line maxi hem and has a deep, plunging neckline, streamlining seams through the skirt and a rounded cutout at the back. We selected an ECOVERO™ viscose-blend cloth, the fibers of which are derived from certified renewable wood sources. <ul><li>Regular fit</li><li>Sleeveless, binding around the neckline</li><li>ECOVERO™ is a trademark of Lenzing AG. Viscose fibers are derived from certified renewable wood sources using a lower environmental impact process</li></ul> 54% Viscose, 46% ECOVERO™ viscose / Machine wash Front length of size 6 is 54.72&quot; / Model wears a size 6

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We've updated our S,M and L sizes based on your feedback. Please refer to the size guide.

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