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Shop a vast selection of secondhand women's formal skirts from Theory, including items on sale. All up to 90% off estimated retail. Discover more like-new clothes and accessories at thredUP!

FormalRemove filterTheoryRemove filter
43 items
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    Theory Faux Leather Skirt (view 2)Theory Faux Leather Skirt (view 1)
    View Product: Theory Faux Leather Skirt

    Theory

    Faux Leather Skirt
    Size 8
    $44.99
    84% off estimated retail
    Theory Silk Skirt (view 2)Theory Silk Skirt (view 1)
    View Product: Theory Silk Skirt

    Theory

    Silk Skirt
    Size 6
    $67.99
    76% off estimated retail
    Theory Leather Skirt (view 2)Theory Leather Skirt (view 1)
    View Product: Theory Leather Skirt

    Theory

    Leather Skirt
    Size 6
    $139.99
    80% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)New With Tags
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 4
    $79.99
    86% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)New With Tags
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 10
    $54.99 $43.99 20% off with code SHINE
    83% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 10
    $49.99 $39.99 20% off with code SHINE
    84% off estimated retail
    Theory Silk Skirt (view 2)Theory Silk Skirt (view 1)
    View Product: Theory Silk Skirt

    Theory

    Silk Skirt
    Size 2
    $33.99 $22.09 35% off with code SHINE
    79% off estimated retail
    Theory Leather Skirt (view 2)Theory Leather Skirt (view 1)
    View Product: Theory Leather Skirt

    Theory

    Leather Skirt
    Size 4
    $119.99 $95.99 20% off with code SHINE
    83% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 0
    $44.99 $35.99 20% off with code SHINE
    84% off estimated retail
    Theory Faux Leather Skirt (view 2)Theory Faux Leather Skirt (view 1)
    View Product: Theory Faux Leather Skirt

    Theory

    Faux Leather Skirt
    Size 4
    $44.99 $35.99 20% off with code SHINE
    84% off estimated retail
    Theory Silk Skirt (view 2)Theory Silk Skirt (view 1)Rare Find
    View Product: Theory Silk Skirt

    Theory

    Silk Skirt
    Size 4
    $55.99 $44.79 20% off with code SHINE
    80% off estimated retail
    Theory Leather Skirt (view 2)Theory Leather Skirt (view 1)
    View Product: Theory Leather Skirt

    Theory

    Leather Skirt
    Size 10
    $114.99 $91.99 20% off with code SHINE
    84% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 6
    $49.99 $39.99 20% off with code SHINE
    82% off estimated retail
    Theory Leather Skirt (view 2)Theory Leather Skirt (view 1)
    View Product: Theory Leather Skirt

    Theory

    Leather Skirt
    Size 10
    $128.99 $103.19 20% off with code SHINE
    82% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 10
    $43.99 $35.19 20% off with code SHINE
    85% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 6
    $47.99 $38.39 20% off with code SHINE
    83% off estimated retail
    Theory Faux Leather Skirt (view 2)Theory Faux Leather Skirt (view 1)New With Tags
    View Product: Theory Faux Leather Skirt

    Theory

    Faux Leather Skirt
    Size 00
    $116.99 $93.59 20% off with code SHINE
    83% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size Sm
    $51.99 $41.59 20% off with code SHINE
    82% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 8
    $39.99 $27.99 30% off with code SHINE
    86% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 2
    $45.99 $25.29 45% off with code SHINE
    84% off estimated retail
    Theory Leather Skirt (view 2)Theory Leather Skirt (view 1)Flawed Gem
    View Product: Theory Leather Skirt

    Theory

    Leather Skirt
    Size 0
    $94.99
    86% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 6
    $47.99 $33.59 30% off with code SHINE
    83% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 6
    $52.99 $37.09 30% off with code SHINE
    81% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 6
    $45.99 $32.19 30% off with code SHINE
    84% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 0
    $45.99 $25.29 45% off with code SHINE
    84% off estimated retail
    Theory Faux Leather Skirt (view 2)Theory Faux Leather Skirt (view 1)
    View Product: Theory Faux Leather Skirt

    Theory

    Faux Leather Skirt
    Size Sm
    $23.99 $12.00 50% off with code SHINE
    91% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 4
    $21.99 $12.09 45% off with code SHINE
    92% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 0
    $45.99 $25.29 45% off with code SHINE
    84% off estimated retail
    Theory Leather Skirt (view 2)Theory Leather Skirt (view 1)Price Drop
    View Product: Theory Leather Skirt

    Theory

    Leather Skirt
    Size 4
    $100.99 $50.50 50% off with code SHINE
    86% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size Sm
    $49.99 $22.50 55% off with code SHINE
    82% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 4
    $44.99 $22.50 50% off with code SHINE
    84% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 4
    $45.99 $23.00 50% off with code SHINE
    84% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 6
    $44.99 $29.24 35% off with code SHINE
    84% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 10
    $41.99 $29.39 30% off with code SHINE
    85% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 2
    $40.99 $20.50 50% off with code SHINE
    86% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 6
    $36.99 $24.04 35% off with code SHINE
    87% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 6
    $40.99 $26.64 35% off with code SHINE
    86% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 6
    $39.99 $25.99 35% off with code SHINE
    86% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size Sm
    $31.99 $14.40 55% off with code SHINE
    89% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 6
    $13.99 $10.49 25% off with code SHINE
    94% off estimated retail
    Theory Silk Skirt (view 2)Theory Silk Skirt (view 1)Price Drop
    View Product: Theory Silk Skirt

    Theory

    Silk Skirt
    Size 2
    $22.99 $12.64 45% off with code SHINE
    92% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 4
    $19.99 $10.99 45% off with code SHINE
    93% off estimated retail
    Theory Formal Skirt (view 2)Theory Formal Skirt (view 1)Price Drop
    View Product: Theory Formal Skirt

    Theory

    Formal Skirt
    Size 0
    $12.99 $8.44 35% off with code SHINE
    95% off estimated retail
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