The Sei
Style keywords
About the brand
THE SEI is a luxury ready-to-wear collection founded in 2020 by four designers who met while working at Michelle Mason. Based in Los Angeles and fully women and minority owned, the brand emerged during the pandemic when the founding team found themselves at a crossroads but chose to stay together, recognizing their complementary strengths and shared vision for creating thoughtful pieces designed for women, by women. The brand builds a foundation of polished classics mixed with seductive silhouettes, empowering women to feel confidence and joy while remaining effortless and timeless. THE SEI's designs masterfully juxtapose masculine restraint in structured pieces against feminine sensuality in draped styles, exploring the contrast between strong, structured designs and irresistibly feminine drapes and folds. The collection spans all generations and lifestyles, ranging from lustrous silk sets and show-stopping gowns to endlessly versatile essentials, creating ready-to-wear that inspires, empowers, and consistently captivates with its polished classics and captivating silhouettes.
Products from The Sei
The Sei
One-shoulder ruched mesh midi dress
$588
$980
Mytheresa
The Sei
Drape-detail ruched chiffon minidress
$427
$855
Mytheresa
The Sei
Plunge Gown With Mesh
$709
$897
Revolve
The Sei
One-shoulder jersey minidress
$532
$760
Mytheresa
The Sei
Metallic jersey gown
$358
$895
Mytheresa
The Sei
One-shoulder metallic jersey gown
$460
$920
Mytheresa
The Sei
Draped silk gown
$1,130
$1,615
Mytheresa
The Sei
Gathered silk satin crop top
$486
$695
Mytheresa
The Sei
Draped silk satin top
$605
Mytheresa
The Sei
Silk one-shoulder top
$528
$660
Mytheresa
The Sei
Draped one-shoulder silk top
$570
Mytheresa
The Sei
Tie-front silk blouse
$528
$755
Mytheresa
The Sei
Leather jacket
$1,880
Mytheresa
The Sei
High-rise silk satin wide-leg pants
$591
$845
Mytheresa
The Sei
Pleated silk charmeuse wide-leg pants
$712
$890
Mytheresa
The Sei
Silk satin blazer
$1,188
$1,485
Mytheresa
The Sei
Oversized silk blazer
$1,357
Mytheresa
The Sei
Silk satin maxi skirt
$742
$1,060
Mytheresa
The Sei
Silk satin maxi skirt
$1,030
Mytheresa
The Sei
Silk satin maxi skirt
$696
$995
Mytheresa
The Sei
One-shoulder silk satin top
$423
$605
Mytheresa
The Sei
Sequined cutout gown
$455
$911
Mytheresa
The Sei
Sequined one-shoulder gown
$473
$677
Mytheresa
The Sei
Embellished jersey gown
$633
$905
Mytheresa
The Sei
One-shoulder silk gown
$742
$1,060
Mytheresa
The Sei
Sequined one-shoulder gown
$976
$1,395
Mytheresa
The Sei
Silk satin bustier gown
$1,151
$1,645
Mytheresa
The Sei
Silk satin wrap minidress
$801
$1,145
Mytheresa
The Sei
Silk satin wrap gown
$1,099
$1,570
Mytheresa
The Sei
Velvet gown
$703
$1,005
Mytheresa
The Sei
Draped silk satin corset gown
$1,151
$1,645
Mytheresa
The Sei
Asymmetric silk satin top
$532
$760
Mytheresa
The Sei
Gathered silk satin blouse
$532
$760
Mytheresa
The Sei
High-rise silk satin wide-leg pants
$609
$870
Mytheresa
The Sei
Oversized silk satin blazer
$1,001
$1,430
Mytheresa
The Sei
Oversized silk satin blazer
$1,001
$1,430
Mytheresa
The Sei
Silk satin maxi skirt
$717
$1,025
Mytheresa
The Sei
Asymmetric silk satin maxi skirt
$763
$1,090
Mytheresa
The Sei
Asymmetric silk satin maxi skirt
$763
$1,090
Mytheresa
The Sei
Draped silk satin gown
$1,197
$1,710
Mytheresa