The Sei Cowl Bustier Gown in Red Self & Lining: 100% silk. Made in China. Dry clean only. Fully lined. Hidden side zipper closure. Boned at bodice. Satin fabric. TSEX-WD110. TS-9170b. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Cowl Bustier Gown in Red

The Sei Cowl Bias Gown in Red Self 1: 80% rayon 20% silk Self 2: 100% silk. Made in China. Dry clean only. Unlined. Back tie-up closure. Velvet fabric with mesh design at skirt. TSEX-WD114. TS-9116. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Cowl Bias Gown in Red

The Sei Cowl Bustier Gown in Black Self & Lining: 100% silk. Made in China. Dry clean only. Fully lined. Hidden side zipper closure. Boned at bodice. Satin fabric. TSEX-WD109. TS-9170b. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Cowl Bustier Gown in Black

The Sei Cowl Bias Gown in Brown Self 1: 80% rayon 20% silk Self 2: 100% silk. Made in China. Dry clean only. Unlined. Back tie-up closure. Crushed velvet fabric with mesh panels at skirt. TSEX-WD112. TS-9116. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Cowl Bias Gown in Brown

Material: 94% polyester, 6% elastane. Care instructions: dry clean. Made in the USA. Designer color name: Black Foil. Lining: 94% polyester, 6% elastane.

The Sei One-shoulder metallic jersey gown

Material: 92% polyester, 8% elastane. Care instructions: dry clean. Made in the USA. Designer color name: Black.

The Sei One-shoulder ruched mesh midi dress

Material: 92% polyester, 8% elastane. Care instructions: dry clean. Made in the USA. Designer color name: Baby Blue. Lining: 87% polyamide, 13% elastane.

The Sei Drape-detail ruched chiffon minidress

Material: 100% silk. Care instructions: dry clean. Made in China. Designer color name: Umber. Lining: 100% silk. Closure: concealed zipper. Silk.

The Sei Draped silk satin gown

Material: 100% silk. Care instructions: dry clean. Made in China. Designer color name: Cherry. Lining: 100% silk. Silk.

The Sei Silk chiffon kaftan

Material: 100% polyester. Care instructions: dry clean. Made in Russia. Designer color name: Black. Lining: 100% silk.

The Sei Sequined one-shoulder gown

Material: 94% polyester, 6% elastane. Care instructions: dry clean. Made in the USA. Designer color name: Silver Foil.

The Sei One-shoulder jersey minidress

Material: 5% metallic fibres, 90% polyamide, 5% elastane. Made in the USA. Care instructions: dry clean. Designer color name: Frost.

The Sei Sequined gown

Material: 90% polyamide, 5% metallic fibres, 5% elastane. Care instructions: dry clean. Made in the USA. Designer color name: Galaxy. Lining: 97% polyamide, 3% elastane.

The Sei Embellished jersey gown

Material: 100% silk. Care instructions: dry clean. Made in China. Designer color name: Fog. Lining: 100% silk. Closure: button fastening. Silk.

The Sei Draped silk gown

Material: 96% polyester, 4% elastane. Care instructions: dry clean. Made in the USA. Designer color name: Silver Foil. Lining: 94% polyester, 6% elastane.

The Sei Metallic jersey gown

Material: 87% polyamide, 13% elastane. Care instructions: dry clean. Made in the USA. Designer color name: Peony. Two-piece set. Material II: 92% polyester, 8% elastane. Lining: 87% polyamide, 13% elastane.

The Sei Curve Gown With Mesh Inset in Black Self: 92% polyester 8% elastane Contrast: 92% polyester 8% elastane Lining: 96% polyester 4% elastane. Made in China. Dry clean. Fully lined. Hidden back zipper closure. TSEX-WD100. Ts9130. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Curve Gown With Mesh Inset in Black

The Sei Lace Contrast Bias Dress in Yellow Silk blend. Made in China. Dry clean. Unlined. Adjustable back tie. TSEX-WD101. Ts9147. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Lace Contrast Bias Dress in Yellow

The Sei One Shoulder Cowl Gown in Green Self & Lining: 100% silk. Made in China. Dry clean only. Fully lined. Hidden side zipper closure. One-shoulder styling and cowl-neckline. Satin fabric. TSEX-WD102. TS-9154b. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei One Shoulder Cowl Gown in Green

The Sei Double Strap Gown in Metallic Silver Self & Lining: 94% polyester 6% elastane. Made in USA. Dry clean only. Fully lined. Pull-on styling. One-shoulder design with cut-out accent. Coated metallic jersey fabric. TSEX-WD103. TS-9157. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Double Strap Gown in Metallic Silver

The Sei Drop Sleeve Drape Dress in Navy 100% silk. Made in China. Dry clean only. Unlined. Hidden side zipper closure. One-shoulder design. Satin fabric with high front slit. TSEX-WD104. TS-9160. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Drop Sleeve Drape Dress in Navy

The Sei Curved Bustier Mini Dress in Black Self: 100% polyester Self 2: 90% viscose 10% polyester Lining: 96% polyester 4% elastane. Made in USA. Dry clean only. Fully lined. Hidden back zipper closure. Boned design at bodice. Sequin embellished fabric. TSEX-WD106. TS-9151. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Curved Bustier Mini Dress in Black

The Sei Detachable Ostrich Trim Wrap Gown in Beige Self % Lining: 100% silk Contrast fabric: 50% ostrich feather 50% marabou feather. Made in China. Dry clean only. Fully lined. Tie-up closure at waist. Feather accent at right shoulder. Wrap styling. Satin fabric with high front slit. TSEX-WD107. TS-9165b. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Detachable Ostrich Trim Wrap Gown in Beige

The Sei Sheer Slit One Shoulder Gown in Metallic Silver Self: 100% polyester Lining: 100% silk. Made in USA. Dry clean only. Partially lined. Pull-on styling. One-shoulder design. Asymmetrical neckline at front and back. Sequin embellished fabric. TSEX-WD108. TS-9166. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Sheer Slit One Shoulder Gown in Metallic Silver

The Sei Long Sleeve Wrap Mini Dress in Blush Self & Lining: 100% silk. Made in China. Dry clean only. Partially lined. Hidden side zipper closure. Surplice design. Satin fabric. TSEX-WD111. TS-9168. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Long Sleeve Wrap Mini Dress in Blush

The Sei Strapless Arm Drape Gown in Brown Self & Lining: 100% silk. Made in China. Dry clean only. Fully lined. TSEX-WD113. TS-9183. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Strapless Arm Drape Gown in Brown

The Sei Asymmetric Gathered Wrap Dress in Navy Self & Lining: 100% silk. Made in USA. Dry clean only. Partially lined. Hidden side zipper closure. One-shoulder styling. Satin fabric with ruching detail and side slit. TSEX-WD115. TS-9139. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Asymmetric Gathered Wrap Dress in Navy

The Sei Halter Drape Bias Dress in Blue Self & Lining: 100% silk. Made in China. Dry clean only. Partially lined. Halterneck button closure. Open back. Satin fabric. TSEX-WD116. TS-9171. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Halter Drape Bias Dress in Blue

The Sei Halter Drape Bias Gown in Red Self & Lining: 100% silk. Made in China. Dry clean only. Fully lined. Halterneck button loop closure. Draped fabric design at front. Open back. Satin fabric. TSEX-WD117. TS-9171b. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Halter Drape Bias Gown in Red

The Sei Ruffle Bias Gown in Green Self & Lining: 100% silk. Made in China. Dry clean only. Partially lined. Back tie-up closure. One-sleeve design. Chiffon fabric with ruffle detail and side slit. TSEX-WD118. TS-9180. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Ruffle Bias Gown in Green

The Sei Diaphanous Mini Dress in Black 100% silk. Made in China. Dry clean only. Partially lined. Hidden side zip closure. TSEX-WD69. TS9088. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Diaphanous Mini Dress in Black

The Sei Asymmetric Halter Gown in Dark Green 100% silk. Made in China. Dry clean only. Unlined. Hidden side zipper closure. Satin finish with side seam slit. TSEX-WD91. TS-9131b. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Asymmetric Halter Gown in Dark Green

The Sei One Shoulder Mini Dress With Train in Fuchsia Self: 92% polyester 8% elastane Lining: 87% polyamide 13% elastane. Made in USA. Dry clean only. Brief lining. Pull-on one shoulder styling. Ruched mesh fabric. TSEX-WD94. TS-9133. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei One Shoulder Mini Dress With Train in Fuchsia

The Sei Cut Out Lace Dress in Purple 100% nylon. Made in USA. Dry clean only. Unlined. Pull-on styling with back tie closure. Asymmetrical hem design. Garment is intentionally sheer, undergarments will show through. Please note brief undergarment included. TSEX-WD97. Ts9144. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Cut Out Lace Dress in Purple

The Sei Cut Out Lace Gown in Black 100% nylon. Made in USA. Dry clean only. Partially lined with attached brief bottom. Back tie closure. Side slit. Garment is intentionally sheer, undergarments will show through. Please note top undergarment not included. TSEX-WD98. Ts9144b. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei Cut Out Lace Gown in Black

Material: 100% silk. Care instructions: dry clean. Made in China. Designer color name: Cherry. Lining: 100% silk. Closure: button fastening. Silk.

The Sei for FWRD Asymmetrical Wrap Gown in Turquoise 100% silk. Made in China. Dry clean only. Fully lined. Hidden side zipper closure. Side slit. TSEX-WD99. Ts9141b. About the designer: THE SEI is a luxury ready-to-wear collection based in L.A. and founded in 2020 by an all-female team of diverse individuals. With prior experience working together at Michelle Mason, the team set out on their own venture where THE SEI was born. The brand sets out to create thoughtful pieces, designed for women—by women, expanding beyond a range of generations and lifestyles. THE SEI aims to build a foundation of polished classics mixed with seductive silhouettes inspired to empower women to feel at their most confident and balanced self, while remaining effortless and timeless.

The Sei for FWRD Asymmetrical Wrap Gown in Turquoise

Lining II: 100% silk, partially lined. Material: 5% metallic fibres, 5% elastane, 90% polyamide. Made in the USA. Designer color name: Frost. Lining: 97% polyamide, partially lined, 3% elastane. Care instructions: dry clean.

Material: 90% polyamide, 5% metallic fibres, 5% elastane. Care instructions: dry clean. Made in the USA. Designer color name: Galaxy. Lining: 97% polyamide, 3% elastane. Closure: zipped back.

The Sei Sequined cutout gown

Material: 100% silk. Care instructions: dry clean. Made in China. Designer color name: Night. Silk.

The SeiSequined one-shoulder gown

Product Info

The Sei Sequined one-shoulder gown