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

TheoryRemove filter
30 items
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    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 4
    $44.99 $35.99 20% off with code THRIFTMO
    84% off estimated retail
    Theory Wool Skirt (view 2)Theory Wool Skirt (view 1)
    View Product: Theory Wool Skirt

    Theory

    Wool Skirt
    Size 4
    $32.99 $16.50 50% off with code THRIFTMO
    86% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 4
    $42.99 $34.39 20% off with code THRIFTMO
    84% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 2
    $39.99 $23.99 40% off with code THRIFTMO
    85% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Theory Silk Skirt (view 2)Theory Silk Skirt (view 1)
    View Product: Theory Silk Skirt

    Theory

    Silk Skirt
    Size 2
    $53.99 $43.19 20% off with code THRIFTMO
    84% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size Sm
    $35.99 $16.20 55% off with code THRIFTMO
    87% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)New With Tags
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 8
    $82.99 $53.94 35% off with code THRIFTMO
    82% off estimated retail
    Theory Wool Skirt (view 2)Theory Wool Skirt (view 1)
    View Product: Theory Wool Skirt

    Theory

    Wool Skirt
    Size 6
    $31.99 $22.39 30% off with code THRIFTMO
    87% 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
    $63.99 $51.19 20% off with code THRIFTMO
    80% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 8
    $34.99 $24.49 30% off with code THRIFTMO
    88% off estimated retail
    Theory Wool Skirt (view 2)Theory Wool Skirt (view 1)
    View Product: Theory Wool Skirt

    Theory

    Wool Skirt
    Size 12
    $31.99
    87% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 4
    $44.99 $33.74 25% off with code THRIFTMO
    86% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 8
    $47.99 $38.39 20% off with code THRIFTMO
    83% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 8
    $38.99 $25.34 35% off with code THRIFTMO
    86% off estimated retail
    Theory Wool Skirt (view 2)Theory Wool Skirt (view 1)
    View Product: Theory Wool Skirt

    Theory

    Wool Skirt
    Size 8
    $37.99 $26.59 30% off with code THRIFTMO
    85% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 4
    $39.99 $21.99 45% off with code THRIFTMO
    85% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 2
    $48.99 $26.94 45% off with code THRIFTMO
    82% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 2
    $225.99 $180.79 20% off with code THRIFTMO
    20% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 2
    $32.99 $18.14 45% off with code THRIFTMO
    88% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 10
    $47.99 $33.59 30% off with code THRIFTMO
    84% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 6
    $38.99 $27.29 30% off with code THRIFTMO
    87% off estimated retail
    Theory Wool Skirt (view 2)Theory Wool Skirt (view 1)Price Drop
    View Product: Theory Wool Skirt

    Theory

    Wool Skirt
    Size 8
    $32.99 $23.09 30% off with code THRIFTMO
    87% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)Price Drop
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 2
    $39.99 $20.00 50% off with code THRIFTMO
    86% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)Price Drop
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 2
    $32.99 $16.50 50% off with code THRIFTMO
    88% off estimated retail
    Theory Wool Skirt (view 2)Theory Wool Skirt (view 1)Price Drop
    View Product: Theory Wool Skirt

    Theory

    Wool Skirt
    Size 2
    $33.99 $18.69 45% off with code THRIFTMO
    90% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)Price Drop
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 6
    $35.99 $25.19 30% off with code THRIFTMO
    91% off estimated retail
    Theory Wool Skirt (view 2)Theory Wool Skirt (view 1)Price Drop
    View Product: Theory Wool Skirt

    Theory

    Wool Skirt
    Size 6
    $27.99 $19.59 30% off with code THRIFTMO
    90% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)Price Drop
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 2
    $34.99 $19.24 45% off with code THRIFTMO
    90% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)Price Drop
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 6
    $33.99 $23.79 30% off with code THRIFTMO
    91% off estimated retail
    Theory Casual Skirt (view 2)Theory Casual Skirt (view 1)Price Drop
    View Product: Theory Casual Skirt

    Theory

    Casual Skirt
    Size 2
    $23.24 $17.43 25% off with code THRIFTMO
    96% off estimated retail
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