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The Sei Open Back Long Sleeve Gown in Chocolate. - size P (also in L, M, S) The Sei Open Back Long Sleeve Gown in Chocolate. - size P (also in L, M, S) 90% Polyester 10% Elastane. Dry clean only. Pull-on styling with button loop closures at back of neck. Fully lined. Open back design. TSEI-WD144. TS9214. Founded in 2020, THE SEI is a ready-to-wear collection based in Los Angeles, California that is fully women and minority owned. The brand aims to build a foundation of polished classics mixed with seductive structured and feminine silhouettes to empower women to feel confidence and joy, while remaining effortless and timeless. All four founders come from various age groups and backgrounds, each bringing a different but essential role to the brand. Their diversity guides them in creating thoughtful pieces, designed for women, by women, that will span all generations and lifestyles.

The Sei Open Back Long Sleeve Gown In Brown
The Sei Open Back Long Sleeve Gown In Brown
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First seen in Oct 2025

THE SEI
Open Back Long Sleeve Gown In Brown

$782 $282 (64% OFF)
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The Sei Open Back Long Sleeve Gown In Brown
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The Sei Open Back Long Sleeve Gown In Gray
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The Sei Open Back Long Sleeve Gown In Gray
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