Under Armour

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Under Armour at up to 90% off estimated retail! thredUP has a huge selection of like-new Under Armour girls' clothing. Find Under Armour activewear, tops, and knits and tees at thredUP.

1,502 items
Under Armour Size 6X

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Under Armour

Size 6X
$15.99 $26

$11.19 30% off with

Under Armour Size Medium kids

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Under Armour

Size Medium kids
$11.99 $23

$9.59 20% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$15.99 $26

$11.19 30% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$18.99 $38

$13.29 30% off with

Under Armour Size Large youth
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Under Armour

Size Large youth
$13.99 $38

$8.39 40% off with

Under Armour Size Small youth

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Under Armour

Size Small youth
$18.99 $38

$13.29 30% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$18.99 $38

$13.29 30% off with

Under Armour Size Large youth
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Under Armour

Size Large youth
$16.99 $38

$10.19 40% off with

Under Armour Size Large youth
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Under Armour

Size Large youth
$18.99 $64

$9.49 50% off with

Under Armour Size X-Small youth
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Under Armour

Size X-Small youth
$20.99 $51

$12.59 40% off with

Under Armour Size Large youth
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View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$21.99 $51

$13.19 40% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$26.99 $55

$21.59 20% off with

Under Armour Size 5

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Under Armour

Size 5
$17.99 $34

$14.39 20% off with

Under Armour Size Medium youth

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Under Armour

Size Medium youth
$21.99 $41

$17.59 20% off with

Under Armour Size Medium youth
New With Tags BadgeNew With Tags

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$28.99 $44.99

$23.19 20% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$17.99 $27

$14.39 20% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$22.99 $41

$18.39 20% off with

Under Armour Size Large youth
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View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$26.99 $55

$21.59 20% off with

Under Armour Size 4

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Under Armour

Size 4
$16.99 $23

$13.59 20% off with

Under Armour Size Small youth
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View Product: Under Armour Size Small youth

Under Armour

Size Small youth
$26.99 $55

$21.59 20% off with

Under Armour Size Medium youth

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Under Armour

Size Medium youth
$15.99 $27

$12.79 20% off with

Under Armour Size Small youth
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View Product: Under Armour Size Small youth

Under Armour

Size Small youth
$24.99 $51

$17.49 30% off with

Under Armour Size X-Small youth

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Under Armour

Size X-Small youth
$15.99 $26

$9.59 40% off with

Under Armour Size X-Small youth

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Under Armour

Size X-Small youth
$27.99 $41

$19.59 30% off with

Under Armour Size Medium youth
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View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$21.99 $51

$13.19 40% off with

Under Armour Size Medium youth

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$20.99 $41

$16.79 20% off with

Under Armour Size Medium youth

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Under Armour

Size Medium youth
$25.99 $55

$20.79 20% off with

Under Armour Size 6

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Under Armour

Size 6
$18.99 $27

$15.19 20% off with

Under Armour Size Medium youth

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Under Armour

Size Medium youth
$19.99 $41

$15.99 20% off with

Under Armour Size Small youth

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Under Armour

Size Small youth
$20.99 $41

$16.79 20% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$25.99 $55

$20.79 20% off with

Under Armour Size Medium youth

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Under Armour

Size Medium youth
$20.99 $41

$16.79 20% off with

Under Armour Size Medium youth

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$14.99 $27

$11.99 20% off with

Under Armour Size Small youth

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Under Armour

Size Small youth
$20.99 $41

$16.79 20% off with

Under Armour Size 18 mo

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Under Armour

Size 18 mo
$9.99 $18
Under Armour Size Medium youth

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Under Armour

Size Medium youth
$23.99 $55

$19.19 20% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$19.99 $41

$15.99 20% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$12.99 $27

$10.39 20% off with

Under Armour Size 5

View Product: Under Armour Size 5

Under Armour

Size 5
$11.99 $23

$9.59 20% off with

Under Armour Size Medium youth

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$23.99 $38

$16.79 30% off with

Under Armour Size Large youth
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Under Armour

Size Large youth
$19.99 $38

$11.99 40% off with

Under Armour Size Large youth

View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$20.99 $38

$12.59 40% off with

Under Armour Size Large youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$19.99 $51

$11.99 40% off with

Under Armour Size Small youth
Price Drop BadgePrice Drop

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Under Armour

Size Small youth
$17.99 $51

$8.99 50% off with

Under Armour Size 3T
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Under Armour

Size 3T
$19.99 $43

$11.99 40% off with

Under Armour Size Small youth
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Under Armour

Size Small youth
$12.99 $38

$7.79 40% off with

Under Armour Size X-Large youth
Price Drop BadgePrice Drop

View Product: Under Armour Size X-Large youth

Under Armour

Size X-Large youth
$21.99 $51

$13.19 40% off with

Under Armour Size Medium youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$19.99 $51

$11.99 40% off with

Under Armour Size Medium youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$19.99 $51

$11.99 40% off with

Under Armour Size Large youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$12.99 $38

$7.79 40% off with

Under Armour Size Small kids

View Product: Under Armour Size Small kids

Under Armour

Size Small kids
$14.99 $32

$10.49 30% off with

Under Armour Size Medium youth

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$16.99 $38

$11.89 30% off with

Under Armour Size X-Large youth

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Under Armour

Size X-Large youth
$21.99 $41

$15.39 30% off with

Under Armour Size X-Large youth

View Product: Under Armour Size X-Large youth

Under Armour

Size X-Large youth
$15.99 $26

$11.19 30% off with

Under Armour Size X-Large youth

View Product: Under Armour Size X-Large youth

Under Armour

Size X-Large youth
$14.99 $38

$8.99 40% off with

Under Armour Size 6
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Under Armour

Size 6
$14.99 $26

$8.99 40% off with

Under Armour Size Small youth
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Under Armour

Size Small youth
$23.99 $64

$11.99 50% off with

Under Armour Beanie

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Under Armour

Beanie
$17.99 $21

$12.59 30% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$16.99 $38

$10.19 40% off with

Under Armour Size Small youth

View Product: Under Armour Size Small youth

Under Armour

Size Small youth
$17.99 $38

$12.59 30% off with

Under Armour Size Small youth

View Product: Under Armour Size Small youth

Under Armour

Size Small youth
$17.99 $38

$12.59 30% off with

Under Armour Size Medium youth

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$16.99 $38

$11.89 30% off with

Under Armour Size Large youth

View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$15.99 $38

$9.59 40% off with

Under Armour Size Large youth

View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$15.99 $38

$9.59 40% off with

Under Armour Size Medium youth
New With Tags BadgeNew With Tags

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$14.99 $29.97

$10.49 30% off with

Under Armour Size X-Large youth
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View Product: Under Armour Size X-Large youth

Under Armour

Size X-Large youth
$13.99 $26

$8.39 40% off with

Under Armour Size Large youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$23.99 $51

$14.39 40% off with

Under Armour Size Medium youth
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View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$18.99 $51

$9.49 50% off with

Under Armour Size Small youth

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Under Armour

Size Small youth
$22.99 $51

$16.09 30% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$14.99 $38

$8.99 40% off with

Under Armour Size X-Large youth
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View Product: Under Armour Size X-Large youth

Under Armour

Size X-Large youth
$23.99 $51

$16.79 30% off with

Under Armour Size Small youth

View Product: Under Armour Size Small youth

Under Armour

Size Small youth
$17.99 $38

$12.59 30% off with

Under Armour Size 5
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Under Armour

Size 5
$21.99 $43

$13.19 40% off with

Under Armour Size 6
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Under Armour

Size 6
$21.99 $38

$13.19 40% off with

Under Armour Size X-Small youth

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Under Armour

Size X-Small youth
$18.99 $38

$11.39 40% off with

Under Armour Size 5

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Under Armour

Size 5
$13.99 $23

$11.19 20% off with

Under Armour Size 4T

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Under Armour

Size 4T
$11.99 $23

$9.59 20% off with

Under Armour Size Medium youth

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Under Armour

Size Medium youth
$23.99 $55

$19.19 20% off with

Under Armour Size Medium youth

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$15.99 $27

$12.79 20% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$24.99 $55

$19.99 20% off with

Under Armour Size Medium youth

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Under Armour

Size Medium youth
$24.99 $55

$19.99 20% off with

Under Armour Size X-Small youth
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View Product: Under Armour Size X-Small youth

Under Armour

Size X-Small youth
$20.99 $41

$16.79 20% off with

Under Armour Size Large youth
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View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$21.99 $51

$13.19 40% off with

Under Armour Size Medium youth

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$15.99 $38

$9.59 40% off with

Under Armour Size Medium youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$19.99 $51

$11.99 40% off with

Under Armour Size Large youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$19.99 $51

$11.99 40% off with

Under Armour Size Medium youth

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Under Armour

Size Medium youth
$15.99 $38

$11.19 30% off with

Under Armour Size 7

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Under Armour

Size 7
$15.99 $38

$11.19 30% off with

Under Armour Size 4T
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Under Armour

Size 4T
$19.99 $43

$11.99 40% off with

Under Armour Size 4T

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Under Armour

Size 4T
$15.99 $32

$11.19 30% off with

Under Armour Size Small youth
Price Drop BadgePrice Drop

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Under Armour

Size Small youth
$15.99 $38

$9.59 40% off with

Under Armour Size Large youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$18.99 $51

$9.49 50% off with

Under Armour Size X-Large youth

View Product: Under Armour Size X-Large youth

Under Armour

Size X-Large youth
$18.99 $38

$13.29 30% off with

Under Armour Size 6
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Under Armour

Size 6
$15.99 $38

$9.59 40% off with

Under Armour Size Small youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Small youth

Under Armour

Size Small youth
$15.99 $38

$9.59 40% off with

Under Armour Size X-Large youth

View Product: Under Armour Size X-Large youth

Under Armour

Size X-Large youth
$12.99 $26

$9.09 30% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$20.99 $41

$16.79 20% off with

Under Armour Size 3T

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Under Armour

Size 3T
$17.99 $34

$14.39 20% off with

Under Armour Size Medium youth

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Under Armour

Size Medium youth
$21.99 $41

$17.59 20% off with

Under Armour Size 2T

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Under Armour

Size 2T
$14.99 $27

$11.99 20% off with

Under Armour Size Large youth

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Under Armour

Size Large youth
$20.99 $41

$16.79 20% off with

Under Armour Size X-Large youth
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View Product: Under Armour Size X-Large youth

Under Armour

Size X-Large youth
$19.99 $41

$15.99 20% off with

Under Armour Size Medium youth

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Under Armour

Size Medium youth
$16.99 $27

$13.59 20% off with

Under Armour Size 2T

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Under Armour

Size 2T
$11.99 $18

$9.59 20% off with

Under Armour Size X-Small youth

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Under Armour

Size X-Small youth
$18.99 $41

$15.19 20% off with

Under Armour Size Medium youth
New With Tags BadgeNew With Tags

View Product: Under Armour Size Medium youth

Under Armour

Size Medium youth
$15.99 $27

$12.79 20% off with

Under Armour Size 2T

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Under Armour

Size 2T
$18.99 $36

$15.19 20% off with

Under Armour Size 6
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View Product: Under Armour Size 6

Under Armour

Size 6
$25.99 $64

$15.59 40% off with

Under Armour Size Large youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$15.99 $38

$9.59 40% off with

Under Armour Size Large youth
Price Drop BadgePrice Drop

View Product: Under Armour Size Large youth

Under Armour

Size Large youth
$14.99 $38

$8.99 40% off with

Under Armour Size X-Large youth

View Product: Under Armour Size X-Large youth

Under Armour

Size X-Large youth
$23.99 $51

$14.39 40% off with

Under Armour Size Large youth
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