Name: THE OPEN-BACK NECKLACE DRESS
Brand: COS
SKU: 1190863001
Price: 225 GBP
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 pressurised 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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We hope that you are satisfied with everything you order from us. If something is not right, you have 30 days to return the items to us.

Please note any purchase made online, from 5th November 2025 - 10th December 2025 can be returned up until 9th January 2026. For purchases made from 11th December 2025 onwards, our normal returns policy will apply. 

We will refund the purchase price via the payment method you selected within 14 days after we receive your return. We kindly ask that the items be returned clean, unworn, and with all labels attached.

Please note that items purchased online cannot be returned or exchanged in our stores.

We hope that you are satisfied with everything you order from us. If something is not right, you have 30 days to return the items to us.

We will refund the purchase price via the payment method you selected within 14 days after we receive your return. We kindly ask that the items be returned clean, unworn, and with all labels attached.
Please note that items purchased online cannot be returned or exchanged in our stores.

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

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This piece is part of the COS ATELIER collection, a limited capsule founded on the principles of luxury and exceptional design. ​​&nbsp;CUT ​This striking dress from the ATELIER AW23 collection will be a worthwhile addition to your event wardrobe. Shaped for a form-fitting silhouette, it's cut to a floor-grazing maxi length and has a draped, low back that's held in place with a slender strap. It's suspended from a silver-tone necklace with a sphere at one end &ndash; a nod to the jewellery in the collection.&nbsp;CLOTH​We selected an ECOVERO&trade; Viscose jersey cloth, chosen specially for its fluid drape and how it hangs effortlessly over the form.&nbsp;CRAFT​This piece is just as beautifully crafted on the inside; it's lined with a backless thong bodysuit for a smooth silhouette and additional support.&nbsp;&nbsp;68% ECOVERO&trade; Viscose, 23% Polyester, 9% Elastane / Machine wash&nbsp;&nbsp;Front length of size S is 123cm / Model wears a size S

This piece is part of the COS ATELIER collection, a limited capsule founded on the principles of luxury and exceptional design. ​​&nbsp;CUT ​This striking dress from the ATELIER AW23 collection will be a worthwhile addition to your event wardrobe. Shaped for a form-fitting silhouette, it's cut to a floor-grazing maxi length and has a draped, low back that's held in place with a slender strap. It's suspended from a silver-tone necklace with a sphere at one end &ndash; a nod to the jewellery in the collection.&nbsp;CLOTH​We selected an ECOVERO&trade; Viscose jersey cloth, chosen specially for its fluid drape and how it hangs effortlessly over the form.&nbsp;CRAFT​This piece is just as beautifully crafted on the inside; it's lined with a backless thong bodysuit for a smooth silhouette and additional support.&nbsp;&nbsp;68% ECOVERO&trade; Viscose, 23% Polyester, 9% Elastane / Machine wash&nbsp;&nbsp;Front length of size S is 123cm / Model wears a size S

THE OPEN-BACK NECKLACE DRESS

This piece is part of the COS ATELIER collection, a limited capsule founded on the principles of luxury and exceptional design. ​​&nbsp;CUT ​This striking dress from the ATELIER AW23 collection will be a worthwhile addition to your event wardrobe. Shaped for a form-fitting silhouette, it's cut to a floor-grazing maxi length and has a draped, low back that's held in place with a slender strap. It's suspended from a silver-tone necklace with a sphere at one end &ndash; a nod to the jewellery in the collection.&nbsp;CLOTH​We selected an ECOVERO&trade; Viscose jersey cloth, chosen specially for its fluid drape and how it hangs effortlessly over the form.&nbsp;CRAFT​This piece is just as beautifully crafted on the inside; it's lined with a backless thong bodysuit for a smooth silhouette and additional support.&nbsp;&nbsp;68% ECOVERO&trade; Viscose, 23% Polyester, 9% Elastane / Machine wash&nbsp;&nbsp;Front length of size S is 123cm / Model wears a size S

This piece is part of the COS ATELIER collection, a limited capsule founded on the principles of luxury and exceptional design. ​​&nbsp;CUT ​This striking dress from the ATELIER AW23 collection will be a worthwhile addition to your event wardrobe. Shaped for a form-fitting silhouette, it's cut to a floor-grazing maxi length and has a draped, low back that's held in place with a slender strap. It's suspended from a silver-tone necklace with a sphere at one end &ndash; a nod to the jewellery in the collection.&nbsp;CLOTH​We selected an ECOVERO&trade; Viscose jersey cloth, chosen specially for its fluid drape and how it hangs effortlessly over the form.&nbsp;CRAFT​This piece is just as beautifully crafted on the inside; it's lined with a backless thong bodysuit for a smooth silhouette and additional support. Carry it to events in the bespoke garment bag.&nbsp;&nbsp;68% ECOVERO&trade; Viscose, 23% Polyester, 9% Elastane / Machine wash&nbsp;&nbsp;Front length of size S is 123cm / Model wears a size S

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