About
ThredUp LogoThredUp
Shop
SellCleanout animation
Beta
My ThredUp
Account
0
Check out

From athletic shorts and sweatpants to active T-shirts and track jackets, activewear helps your girls do their best playing on the court or on the playground. Find pre-loved gems at thredUP and save up to 90% off in-store prices.

6-9 moRemove filter
63 items
Sort by:
    LIVLY One Piece Snowsuit (view 2)LIVLY One Piece Snowsuit (view 1)
    View Product: LIVLY One Piece Snowsuit

    LIVLY

    One Piece Snowsuit
    Size 6-9 mo
    $38.99
    55% off estimated retail
    Monica + Andy Sweatpants (view 2)Monica + Andy Sweatpants (view 1)
    View Product: Monica + Andy Sweatpants

    Monica + Andy

    Sweatpants
    Size 6-9 mo
    $13.99
    36% off estimated retail
    Under Armour Active Pants (view 2)Under Armour Active Pants (view 1)
    View Product: Under Armour Active Pants

    Under Armour

    Active Pants
    Size 6-9 mo
    $8.99
    50% off estimated retail
    Pagelaurenbaby baby Sweatpants (view 2)Pagelaurenbaby baby Sweatpants (view 1)
    View Product: Pagelaurenbaby baby Sweatpants

    Pagelaurenbaby baby

    Sweatpants
    Size 6-9 mo
    $10.99 $8.79 20% off with code THANKU
    $11
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Rothschild One Piece Snowsuit (view 2)Rothschild One Piece Snowsuit (view 1)
    View Product: Rothschild One Piece Snowsuit

    Rothschild

    One Piece Snowsuit
    Size 6-9 mo
    $19.99 $12.99 35% off with code THANKU
    68% off estimated retail
    Catherine Malandrino Sweatpants (view 2)Catherine Malandrino Sweatpants (view 1)
    View Product: Catherine Malandrino Sweatpants

    Catherine Malandrino

    Sweatpants
    Size 6-9 mo
    $20.99 $14.69 30% off with code THANKU
    83% off estimated retail
    Baby Beau & Belle Sweatpants (view 2)Baby Beau & Belle Sweatpants (view 1)
    View Product: Baby Beau & Belle Sweatpants

    Baby Beau & Belle

    Sweatpants
    Size 6-9 mo
    $35.99 $23.39 35% off with code THANKU
    44% off estimated retail
    The Children's Place One Piece Snowsuit (view 2)The Children's Place One Piece Snowsuit (view 1)
    View Product: The Children's Place One Piece Snowsuit

    The Children's Place

    One Piece Snowsuit
    Size 6-9 mo
    $14.99 $11.99 20% off with code THANKU
    59% off estimated retail
    OshKosh B'gosh One Piece Snowsuit (view 2)OshKosh B'gosh One Piece Snowsuit (view 1)
    View Product: OshKosh B'gosh One Piece Snowsuit

    OshKosh B'gosh

    One Piece Snowsuit
    Size 6-9 mo
    $14.99 $11.99 20% off with code THANKU
    65% off estimated retail
    Made With Love Zip Up Hoodie (view 2)Made With Love Zip Up Hoodie (view 1)
    View Product: Made With Love Zip Up Hoodie

    Made With Love

    Zip Up Hoodie
    Size 6-9 mo
    $11.99 $9.59 20% off with code THANKU
    58% off estimated retail
    Healthtex Zip Up Hoodie (view 2)Healthtex Zip Up Hoodie (view 1)
    View Product: Healthtex Zip Up Hoodie

    Healthtex

    Zip Up Hoodie
    Size 6-9 mo
    $6.99 $5.59 20% off with code THANKU
    53% off estimated retail
    Coccodrillo Zip Up Hoodie (view 2)Coccodrillo Zip Up Hoodie (view 1)New With Tags
    View Product: Coccodrillo Zip Up Hoodie

    Coccodrillo

    Zip Up Hoodie
    Size 6-9 mo
    $13.99 $11.19 20% off with code THANKU
    51% off estimated retail
    Rothschild One Piece Snowsuit (view 2)Rothschild One Piece Snowsuit (view 1)
    View Product: Rothschild One Piece Snowsuit

    Rothschild

    One Piece Snowsuit
    Size 6-9 mo
    $17.99 $14.39 20% off with code THANKU
    71% off estimated retail
    EZPZ Easy Peasy Sweatpants (view 2)EZPZ Easy Peasy Sweatpants (view 1)
    View Product: EZPZ Easy Peasy Sweatpants

    EZPZ Easy Peasy

    Sweatpants
    Size 6-9 mo
    $18.99 $14.24 25% off with code THANKU
    65% off estimated retail
    EZPZ Easy Peasy Sweatpants (view 2)EZPZ Easy Peasy Sweatpants (view 1)
    View Product: EZPZ Easy Peasy Sweatpants

    EZPZ Easy Peasy

    Sweatpants
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    83% off estimated retail
    Body Glove Zip Up Hoodie (view 2)Body Glove Zip Up Hoodie (view 1)
    View Product: Body Glove Zip Up Hoodie

    Body Glove

    Zip Up Hoodie
    Size 6-9 mo
    $15.99 $11.99 25% off with code THANKU
    55% off estimated retail
    Primary Clothing Pullover Hoodie (view 2)Primary Clothing Pullover Hoodie (view 1)
    View Product: Primary Clothing Pullover Hoodie

    Primary Clothing

    Pullover Hoodie
    Size 6-9 mo
    $13.99 $10.49 25% off with code THANKU
    61% off estimated retail
    Nike Track Pants (view 2)Nike Track Pants (view 1)
    View Product: Nike Track Pants

    Nike

    Track Pants
    Size 6-9 mo
    $17.99 $10.79 40% off with code THANKU
    58% off estimated retail
    Disney Pullover Hoodie (view 2)Disney Pullover Hoodie (view 1)
    View Product: Disney Pullover Hoodie

    Disney

    Pullover Hoodie
    Size 6-9 mo
    $11.99 $9.59 20% off with code THANKU
    20% off estimated retail
    Juicy Couture Zip Up Hoodie (view 2)Juicy Couture Zip Up Hoodie (view 1)
    View Product: Juicy Couture Zip Up Hoodie

    Juicy Couture

    Zip Up Hoodie
    Size 6-9 mo
    $22.99 $17.24 25% off with code THANKU
    81% off estimated retail
    Unbranded Zip Up Hoodie (view 2)Unbranded Zip Up Hoodie (view 1)
    View Product: Unbranded Zip Up Hoodie

    Unbranded

    Zip Up Hoodie
    Size 6-9 mo
    $13.99 $10.49 25% off with code THANKU
    51% off estimated retail
    Juicy Couture Zip Up Hoodie (view 2)Juicy Couture Zip Up Hoodie (view 1)
    View Product: Juicy Couture Zip Up Hoodie

    Juicy Couture

    Zip Up Hoodie
    Size 6-9 mo
    $24.99 $18.74 25% off with code THANKU
    80% off estimated retail
    Baby Boden Sweatpants (view 2)Baby Boden Sweatpants (view 1)
    View Product: Baby Boden Sweatpants

    Baby Boden

    Sweatpants
    Size 6-9 mo
    $15.99 $12.79 20% off with code THANKU
    40% off estimated retail
    Under Armour Active Pants (view 2)Under Armour Active Pants (view 1)
    View Product: Under Armour Active Pants

    Under Armour

    Active Pants
    Size 6-9 mo
    $10.99 $7.69 30% off with code THANKU
    38% off estimated retail
    Under Armour Active Pants (view 2)Under Armour Active Pants (view 1)
    View Product: Under Armour Active Pants

    Under Armour

    Active Pants
    Size 6-9 mo
    $9.99 $7.49 25% off with code THANKU
    44% off estimated retail
    Chick Pea Sweatpants (view 2)Chick Pea Sweatpants (view 1)
    View Product: Chick Pea Sweatpants

    Chick Pea

    Sweatpants
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    18% off estimated retail
    Adidas Track Jacket (view 2)Adidas Track Jacket (view 1)
    View Product: Adidas Track Jacket

    Adidas

    Track Jacket
    Size 6-9 mo
    $11.99 $8.99 25% off with code THANKU
    55% off estimated retail
    First Impressions Pullover Hoodie (view 2)First Impressions Pullover Hoodie (view 1)
    View Product: First Impressions Pullover Hoodie

    First Impressions

    Pullover Hoodie
    Size 6-9 mo
    $11.99 $9.59 20% off with code THANKU
    66% off estimated retail
    Puma Active Pants (view 2)Puma Active Pants (view 1)Price Drop
    View Product: Puma Active Pants

    Puma

    Active Pants
    Size 6-9 mo
    $6.99 $5.59 20% off with code THANKU
    53% off estimated retail
    Unbranded Pullover Hoodie (view 2)Unbranded Pullover Hoodie (view 1)Price Drop
    View Product: Unbranded Pullover Hoodie

    Unbranded

    Pullover Hoodie
    Size 6-9 mo
    $10.99 $8.79 20% off with code THANKU
    62% off estimated retail
    PatPat Pullover Hoodie (view 2)PatPat Pullover Hoodie (view 1)Price Drop
    View Product: PatPat Pullover Hoodie

    PatPat

    Pullover Hoodie
    Size 6-9 mo
    $10.99 $8.79 20% off with code THANKU
    26% off estimated retail
    Polarn O. Pyret Zip Up Hoodie (view 2)Polarn O. Pyret Zip Up Hoodie (view 1)Price Drop
    View Product: Polarn O. Pyret Zip Up Hoodie

    Polarn O. Pyret

    Zip Up Hoodie
    Size 6-9 mo
    $13.99 $9.09 35% off with code THANKU
    67% off estimated retail
    Puma Track Jacket (view 2)Puma Track Jacket (view 1)Price Drop
    View Product: Puma Track Jacket

    Puma

    Track Jacket
    Size 6-9 mo
    $10.99 $8.79 20% off with code THANKU
    50% off estimated retail
    Assorted Brands Zip Up Hoodie (view 2)Assorted Brands Zip Up Hoodie (view 1)Price Drop
    View Product: Assorted Brands Zip Up Hoodie

    Assorted Brands

    Zip Up Hoodie
    Size 6-9 mo
    $9.99 $7.49 25% off with code THANKU
    65% off estimated retail
    Rene Rofe Sweatpants (view 2)Rene Rofe Sweatpants (view 1)
    View Product: Rene Rofe Sweatpants

    Rene Rofe

    Sweatpants
    Size 6-9 mo
    $6.99 $5.59 20% off with code THANKU
    36% off estimated retail
    Zara Pullover Hoodie (view 2)Zara Pullover Hoodie (view 1)Price Drop
    View Product: Zara Pullover Hoodie

    Zara

    Pullover Hoodie
    Size 6-9 mo
    $11.99 $8.39 30% off with code THANKU
    66% off estimated retail
    Mini Bean Sweatpants (view 2)Mini Bean Sweatpants (view 1)Price Drop
    View Product: Mini Bean Sweatpants

    Mini Bean

    Sweatpants
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    27% off estimated retail
    Puma Zip Up Hoodie (view 2)Puma Zip Up Hoodie (view 1)Price Drop
    View Product: Puma Zip Up Hoodie

    Puma

    Zip Up Hoodie
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    65% off estimated retail
    All Mine Pullover Hoodie (view 2)All Mine Pullover Hoodie (view 1)Price Drop
    View Product: All Mine Pullover Hoodie

    All Mine

    Pullover Hoodie
    Size 6-9 mo
    $6.99 $5.59 20% off with code THANKU
    53% off estimated retail
    Yoga Sprout Athletic Shorts (view 2)Yoga Sprout Athletic Shorts (view 1)Price Drop
    View Product: Yoga Sprout Athletic Shorts

    Yoga Sprout

    Athletic Shorts
    Size 6-9 mo
    $6.99 $5.59 20% off with code THANKU
    $7
    Hurley Zip Up Hoodie (view 2)Hurley Zip Up Hoodie (view 1)Price Drop
    View Product: Hurley Zip Up Hoodie

    Hurley

    Zip Up Hoodie
    Size 6-9 mo
    $10.99 $8.24 25% off with code THANKU
    75% off estimated retail
    Under Armour Track Jacket (view 2)Under Armour Track Jacket (view 1)Price Drop
    View Product: Under Armour Track Jacket

    Under Armour

    Track Jacket
    Size 6-9 mo
    $8.99 $6.74 25% off with code THANKU
    66% off estimated retail
    Bundles Sweatpants (view 2)Bundles Sweatpants (view 1)Price Drop
    View Product: Bundles Sweatpants

    Bundles

    Sweatpants
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    18% off estimated retail
    Cat & Jack Zip Up Hoodie (view 2)Cat & Jack Zip Up Hoodie (view 1)Price Drop
    View Product: Cat & Jack Zip Up Hoodie

    Cat & Jack

    Zip Up Hoodie
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    16% off estimated retail
    OshKosh B'gosh Zip Up Hoodie (view 2)OshKosh B'gosh Zip Up Hoodie (view 1)Price Drop
    View Product: OshKosh B'gosh Zip Up Hoodie

    OshKosh B'gosh

    Zip Up Hoodie
    Size 6-9 mo
    $10.99 $8.79 20% off with code THANKU
    62% off estimated retail
    Assorted Brands Sweatpants (view 2)Assorted Brands Sweatpants (view 1)Price Drop
    View Product: Assorted Brands Sweatpants

    Assorted Brands

    Sweatpants
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    59% off estimated retail
    Little Lindsey Zip Up Hoodie (view 2)Little Lindsey Zip Up Hoodie (view 1)Price Drop
    View Product: Little Lindsey Zip Up Hoodie

    Little Lindsey

    Zip Up Hoodie
    Size 6-9 mo
    $6.99 $5.59 20% off with code THANKU
    68% off estimated retail
    Baby V Zip Up Hoodie (view 2)Baby V Zip Up Hoodie (view 1)Price Drop
    View Product: Baby V Zip Up Hoodie

    Baby V

    Zip Up Hoodie
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    46% off estimated retail
    Adidas Active T-Shirt (view 2)Adidas Active T-Shirt (view 1)Price Drop
    View Product: Adidas Active T-Shirt

    Adidas

    Active T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    70% off estimated retail
    Young Hearts Zip Up Hoodie (view 2)Young Hearts Zip Up Hoodie (view 1)New With Tags
    View Product: Young Hearts Zip Up Hoodie

    Young Hearts

    Zip Up Hoodie
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    54% off estimated retail
    Yoga Sprout Zip Up Hoodie (view 2)Yoga Sprout Zip Up Hoodie (view 1)Price Drop
    View Product: Yoga Sprout Zip Up Hoodie

    Yoga Sprout

    Zip Up Hoodie
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    33% off estimated retail
    Assorted Brands Sweatpants (view 2)Assorted Brands Sweatpants (view 1)Price Drop
    View Product: Assorted Brands Sweatpants

    Assorted Brands

    Sweatpants
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    59% off estimated retail
    Under Armour Active T-Shirt (view 2)Under Armour Active T-Shirt (view 1)Price Drop
    View Product: Under Armour Active T-Shirt

    Under Armour

    Active T-Shirt
    Size 6-9 mo
    $8.99 $6.74 25% off with code THANKU
    66% off estimated retail
    Nike Active Tank (view 2)Nike Active Tank (view 1)Price Drop
    View Product: Nike Active Tank

    Nike

    Active Tank
    Size 6-9 mo
    $8.99 $6.74 25% off with code THANKU
    66% off estimated retail
    Baby Phat Pullover Hoodie (view 2)Baby Phat Pullover Hoodie (view 1)Price Drop
    View Product: Baby Phat Pullover Hoodie

    Baby Phat

    Pullover Hoodie
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    54% off estimated retail
    Puma Track Jacket (view 2)Puma Track Jacket (view 1)Price Drop
    View Product: Puma Track Jacket

    Puma

    Track Jacket
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    59% off estimated retail
    Puma Track Pants (view 2)Puma Track Pants (view 1)Price Drop
    View Product: Puma Track Pants

    Puma

    Track Pants
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    63% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Price Drop
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 6-9 mo
    $8.99 $5.84 35% off with code THANKU
    64% off estimated retail
    Dolgencorp Yoga Pants (view 2)Dolgencorp Yoga Pants (view 1)
    View Product: Dolgencorp Yoga Pants

    Dolgencorp

    Yoga Pants
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    10% off estimated retail
    Puma Track Jacket (view 2)Puma Track Jacket (view 1)Price Drop
    View Product: Puma Track Jacket

    Puma

    Track Jacket
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    55% off estimated retail
    Kiko & Max Zip Up Hoodie (view 2)Kiko & Max Zip Up Hoodie (view 1)
    View Product: Kiko & Max Zip Up Hoodie

    Kiko & Max

    Zip Up Hoodie
    Size 6-9 mo
    $8.99 $6.74 25% off with code THANKU
    73% off estimated retail
    Under Armour Active T-Shirt (view 2)Under Armour Active T-Shirt (view 1)Price Drop
    View Product: Under Armour Active T-Shirt

    Under Armour

    Active T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    60% off estimated retail
    Assorted Brands Sweatpants (view 2)Assorted Brands Sweatpants (view 1)Price Drop
    View Product: Assorted Brands Sweatpants

    Assorted Brands

    Sweatpants
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    60% off estimated retail
    Back
    1
    Next

    Loading...