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    The Sei

    The Sei is a Los Angeles-based luxury ready-to-wear brand, founded in 2020, known for its polished, classic designs mixed with seductive and feminine silhouettes, designed for women, by women.

    Shop The Sei secondhand

    The Sei - Piallette Sequin Cami DressNWT
    $990$738
    Snagged&Bagged
    Nwt The Sei Paillette Sequin Embellished One Shoulder Maxi Gown Dress Rose GoldNWT
    $1415$659
    Poshmark · Size 2
    The Sei - Asymmetrical Drape Gown With TieNWT
    $1295$860
    Snagged&Bagged
    The Sei - Asymmetrical Drape Gown With Tie - us4 / SteelNWT
    $1295$860
    Snagged&Bagged · Size us4
    The Sei - Women's Cowl Bustier GownNWT
    $1295$1011
    Snagged&Bagged
    The Sei - Ruffle Bias GownNWT
    $1230$816
    Snagged&Bagged
    The Sei - Gathered Asymmetric One Shoulder Top & Amino Skirt SetNWT
    $770$523
    Snagged&Bagged
    The Sei - One Shoulder Cut Out GownNWT
    $1346$914
    Snagged&Bagged
    The Sei - Diaphanous Mini DressNWT
    $1030$668
    Snagged&Bagged
    The Sei Women's Bodycon Dress - Red - 2NWT
    $205.45
    Depop · Size 2
    The Sei Women's Dress - Green - 4NWT
    $310.66
    Depop · Size 4
    The Sei Women's Skirt - Black - 6NWT
    $156.1
    Depop · Size 6
    The Sei Asymmetrical Bandeau Asymmetrical One Shoulder Silk Gown Nwt Mint GreenNWT
    $1242$195
    Poshmark · Size 10
    The Sei Nwt Ruched Mini Skirt Size 4 In Solid Bright Fuchsia Pink 100% SilkNWT
    $450$338
    Poshmark · Size 4
    The Sei X Revolve Hot Pink Asymmetric Gown
    $995$695
    Poshmark · Size 8
    The Sei For Fwrd Womens Drape Gown In Scarlet 10 New Long Maxi Dress
    $989$625
    Poshmark · Size 10
    Nwt The Slope Knit Sweater Ascott Aprs Ski V-Neck Classic Winter PulloverNWT
    $39
    Poshmark · Size L
    The Slope Lightweight Long Sleeve Sweater Pink Gray White Striped Junior Plus 3xNWT
    $11
    Poshmark · Size Xxxl
    The Sei One Shoulder Gown In Frost Size LNWT
    $695$495
    Poshmark · Size L
    Nwt The Sei Asymmetrical Drape Dress Size 0 $794NWT
    $794$499
    Poshmark · Size 0
    Nwt The Sei Asymmetrical Long-Sleeve Maxi Dress Size S $897NWT
    $897$595
    Poshmark · Size S
    Nwt The Sei Bias Midi Dress In Icy Lilac Size 0 $989NWT
    $499
    Poshmark · Size 0
    Nwt The Sei Drop Sleeve Drape Dress Size Us4 $989NWT
    $989$499
    Poshmark · Size 4
    The Sei Ruched Mini Skirt In Azul Size 8 NwtNWT
    $494
    Poshmark · Size 8
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