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From toddlers to preteens, girls appreciate having the perfect outfit. Whether the girls in your life are princesses or sports stars, thredUP has a nice selection of clothes to meet their preferences. Clothes don't grow™, your kids do—shop today to find amazing items at up to 90% off estimated retail!

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81 items
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    Old Navy Short Sleeve Onesie (view 2)Old Navy Short Sleeve Onesie (view 1)
    View Product: Old Navy Short Sleeve Onesie

    Old Navy

    Short Sleeve Onesie
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    $11
    Warner Bros Short Sleeve T-Shirt (view 2)Warner Bros Short Sleeve T-Shirt (view 1)
    View Product: Warner Bros Short Sleeve T-Shirt

    Warner Bros

    Short Sleeve T-Shirt
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Laughing Giraffe Long Sleeve Onesie (view 2)Laughing Giraffe Long Sleeve Onesie (view 1)
    View Product: Laughing Giraffe Long Sleeve Onesie

    Laughing Giraffe

    Long Sleeve Onesie
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    63% off estimated retail
    Old Navy Poncho (view 2)Old Navy Poncho (view 1)Price Drop
    View Product: Old Navy Poncho

    Old Navy

    Poncho
    Size 12-18 mo
    $10.99 $8.79 20% off with code THANKU
    47% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Assorted Brands Dress (view 2)Assorted Brands Dress (view 1)
    View Product: Assorted Brands Dress

    Assorted Brands

    Dress
    Size 12-18 mo
    $10.99 $8.79 20% off with code THANKU
    62% off estimated retail
    Made With Love Dress (view 2)Made With Love Dress (view 1)
    View Product: Made With Love Dress

    Made With Love

    Dress
    Size 12-18 mo
    $6.99 $5.59 20% off with code THANKU
    75% off estimated retail
    Unbranded Long Sleeve Onesie (view 2)Unbranded Long Sleeve Onesie (view 1)
    View Product: Unbranded Long Sleeve Onesie

    Unbranded

    Long Sleeve Onesie
    Size 12-18 mo
    $11.99 $9.59 20% off with code THANKU
    45% off estimated retail
    Assorted Brands Denim Jacket (view 2)Assorted Brands Denim Jacket (view 1)Price Drop
    View Product: Assorted Brands Denim Jacket

    Assorted Brands

    Denim Jacket
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    72% off estimated retail
    Baby Gap Long Sleeve Onesie (view 2)Baby Gap Long Sleeve Onesie (view 1)
    View Product: Baby Gap Long Sleeve Onesie

    Baby Gap

    Long Sleeve Onesie
    Size 12-18 mo
    $11.99 $9.59 20% off with code THANKU
    60% off estimated retail
    Unbranded Short Sleeve Onesie (view 2)Unbranded Short Sleeve Onesie (view 1)
    View Product: Unbranded Short Sleeve Onesie

    Unbranded

    Short Sleeve Onesie
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Baby Gap Short Sleeve Onesie (view 2)Baby Gap Short Sleeve Onesie (view 1)Price Drop
    View Product: Baby Gap Short Sleeve Onesie

    Baby Gap

    Short Sleeve Onesie
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    37% off estimated retail
    Baby Gap Shorts (view 2)Baby Gap Shorts (view 1)Price Drop
    View Product: Baby Gap Shorts

    Baby Gap

    Shorts
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    57% off estimated retail
    Crew & Lu Skirt (view 2)Crew & Lu Skirt (view 1)Price Drop
    View Product: Crew & Lu Skirt

    Crew & Lu

    Skirt
    Size 12-18 mo
    $13.99 $11.19 20% off with code THANKU
    74% off estimated retail
    Old Navy Long Sleeve Onesie (view 2)Old Navy Long Sleeve Onesie (view 1)
    View Product: Old Navy Long Sleeve Onesie

    Old Navy

    Long Sleeve Onesie
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    $11
    Hope & Henry Dress (view 2)Hope & Henry Dress (view 1)
    View Product: Hope & Henry Dress

    Hope & Henry

    Dress
    Size 12-18 mo
    $13.99 $11.19 20% off with code THANKU
    51% off estimated retail
    Baby Gap Vest (view 2)Baby Gap Vest (view 1)Price Drop
    View Product: Baby Gap Vest

    Baby Gap

    Vest
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    76% off estimated retail
    Baby Gap Dress (view 2)Baby Gap Dress (view 1)
    View Product: Baby Gap Dress

    Baby Gap

    Dress
    Size 12-18 mo
    $17.99 $14.39 20% off with code THANKU
    51% off estimated retail
    Assorted Brands Short Sleeve Onesie (view 2)Assorted Brands Short Sleeve Onesie (view 1)
    View Product: Assorted Brands Short Sleeve Onesie

    Assorted Brands

    Short Sleeve Onesie
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Baby Gap Vest (view 2)Baby Gap Vest (view 1)
    View Product: Baby Gap Vest

    Baby Gap

    Vest
    Size 12-18 mo
    $12.99 $10.39 20% off with code THANKU
    69% off estimated retail
    Adidas Sweatpants (view 2)Adidas Sweatpants (view 1)Price Drop
    View Product: Adidas Sweatpants

    Adidas

    Sweatpants
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    70% off estimated retail
    Gymboree Shorts (view 2)Gymboree Shorts (view 1)Price Drop
    View Product: Gymboree Shorts

    Gymboree

    Shorts
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    60% off estimated retail
    Baby Gap Dress (view 2)Baby Gap Dress (view 1)Price Drop
    View Product: Baby Gap Dress

    Baby Gap

    Dress
    Size 12-18 mo
    $16.99 $13.59 20% off with code THANKU
    54% off estimated retail
    Baby Gap Shorts (view 2)Baby Gap Shorts (view 1)Price Drop
    View Product: Baby Gap Shorts

    Baby Gap

    Shorts
    Size 12-18 mo
    $10.99 $8.79 20% off with code THANKU
    47% off estimated retail
    Zara Baby Dress (view 2)Zara Baby Dress (view 1)Price Drop
    View Product: Zara Baby Dress

    Zara Baby

    Dress
    Size 12-18 mo
    $11.99 $9.59 20% off with code THANKU
    58% off estimated retail
    Baby Gap Short Sleeve Button-Down Shirt (view 2)Baby Gap Short Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Baby Gap Short Sleeve Button-Down Shirt

    Baby Gap

    Short Sleeve Button-Down Shirt
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    52% off estimated retail
    Blu Kids Short Sleeve Onesie (view 2)Blu Kids Short Sleeve Onesie (view 1)Price Drop
    View Product: Blu Kids Short Sleeve Onesie

    Blu Kids

    Short Sleeve Onesie
    Size 12-18 mo
    $4.99 $3.99 20% off with code THANKU
    28% off estimated retail
    Unbranded Short Sleeve Onesie (view 2)Unbranded Short Sleeve Onesie (view 1)Price Drop
    View Product: Unbranded Short Sleeve Onesie

    Unbranded

    Short Sleeve Onesie
    Size 12-18 mo
    $5.99 $4.79 20% off with code THANKU
    60% off estimated retail
    Assorted Brands Short Sleeve Onesie (view 2)Assorted Brands Short Sleeve Onesie (view 1)Price Drop
    View Product: Assorted Brands Short Sleeve Onesie

    Assorted Brands

    Short Sleeve Onesie
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Unbranded Short Sleeve Onesie (view 2)Unbranded Short Sleeve Onesie (view 1)Price Drop
    View Product: Unbranded Short Sleeve Onesie

    Unbranded

    Short Sleeve Onesie
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    59% off estimated retail
    Baby Gap Short Sleeve Henley (view 2)Baby Gap Short Sleeve Henley (view 1)Price Drop
    View Product: Baby Gap Short Sleeve Henley

    Baby Gap

    Short Sleeve Henley
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    50% off estimated retail
    TU Short Sleeve Outfit (view 2)TU Short Sleeve Outfit (view 1)Price Drop
    View Product: TU Short Sleeve Outfit

    TU

    Short Sleeve Outfit
    Size 12-18 mo
    $10.99 $8.79 20% off with code THANKU
    38% off estimated retail
    Fox Short Sleeve T-Shirt (view 2)Fox Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Fox Short Sleeve T-Shirt

    Fox

    Short Sleeve T-Shirt
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Max Dress (view 2)Max Dress (view 1)Price Drop
    View Product: Max Dress

    Max

    Dress
    Size 12-18 mo
    $10.99 $8.79 20% off with code THANKU
    26% off estimated retail
    Old Navy Long Sleeve Onesie (view 2)Old Navy Long Sleeve Onesie (view 1)Price Drop
    View Product: Old Navy Long Sleeve Onesie

    Old Navy

    Long Sleeve Onesie
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    18% off estimated retail
    Baby Gap Short Sleeve Onesie (view 2)Baby Gap Short Sleeve Onesie (view 1)Price Drop
    View Product: Baby Gap Short Sleeve Onesie

    Baby Gap

    Short Sleeve Onesie
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    37% off estimated retail
    Baby Gap Short Sleeve Onesie (view 2)Baby Gap Short Sleeve Onesie (view 1)Price Drop
    View Product: Baby Gap Short Sleeve Onesie

    Baby Gap

    Short Sleeve Onesie
    Size 12-18 mo
    $6.99 $5.59 20% off with code THANKU
    56% off estimated retail
    Garb Short Sleeve Outfit (view 2)Garb Short Sleeve Outfit (view 1)Price Drop
    View Product: Garb Short Sleeve Outfit

    Garb

    Short Sleeve Outfit
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    55% off estimated retail
    Old Navy Long Sleeve Onesie (view 2)Old Navy Long Sleeve Onesie (view 1)Price Drop
    View Product: Old Navy Long Sleeve Onesie

    Old Navy

    Long Sleeve Onesie
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    18% off estimated retail
    Assorted Brands Shorts (view 2)Assorted Brands Shorts (view 1)Price Drop
    View Product: Assorted Brands Shorts

    Assorted Brands

    Shorts
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Assorted Brands Short Sleeve Onesie (view 2)Assorted Brands Short Sleeve Onesie (view 1)Price Drop
    View Product: Assorted Brands Short Sleeve Onesie

    Assorted Brands

    Short Sleeve Onesie
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Old Navy Casual Pants (view 2)Old Navy Casual Pants (view 1)Price Drop
    View Product: Old Navy Casual Pants

    Old Navy

    Casual Pants
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    43% off estimated retail
    Floatimini One Piece Swimsuit (view 2)Floatimini One Piece Swimsuit (view 1)Price Drop
    View Product: Floatimini One Piece Swimsuit

    Floatimini

    One Piece Swimsuit
    Size 12-18 mo
    $6.99 $5.59 20% off with code THANKU
    86% off estimated retail
    Baby Gap Long Sleeve Blouse (view 2)Baby Gap Long Sleeve Blouse (view 1)Price Drop
    View Product: Baby Gap Long Sleeve Blouse

    Baby Gap

    Long Sleeve Blouse
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    68% off estimated retail
    Gymboree Denim Shorts (view 2)Gymboree Denim Shorts (view 1)Price Drop
    View Product: Gymboree Denim Shorts

    Gymboree

    Denim Shorts
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    64% off estimated retail
    Baby Gap Shorts (view 2)Baby Gap Shorts (view 1)Price Drop
    View Product: Baby Gap Shorts

    Baby Gap

    Shorts
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    55% off estimated retail
    Zutano Dress (view 2)Zutano Dress (view 1)Price Drop
    View Product: Zutano Dress

    Zutano

    Dress
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    59% off estimated retail
    Baby Lindex Dress (view 2)Baby Lindex Dress (view 1)Price Drop
    View Product: Baby Lindex Dress

    Baby Lindex

    Dress
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    63% off estimated retail
    Splendid Sweatshirt (view 2)Splendid Sweatshirt (view 1)
    View Product: Splendid Sweatshirt

    Splendid

    Sweatshirt
    Size 12-18 mo
    $12.99 $10.39 20% off with code THANKU
    70% off estimated retail
    Bloomies Baby Casual Pants (view 2)Bloomies Baby Casual Pants (view 1)
    View Product: Bloomies Baby Casual Pants

    Bloomies Baby

    Casual Pants
    Size 12-18 mo
    $10.99 $8.79 20% off with code THANKU
    26% off estimated retail
    Mini Rodini Dress (view 2)Mini Rodini Dress (view 1)
    View Product: Mini Rodini Dress

    Mini Rodini

    Dress
    Size 12-18 mo
    $55.99 $44.79 20% off with code THANKU
    35% off estimated retail
    Daydreamers Long Sleeve Onesie (view 2)Daydreamers Long Sleeve Onesie (view 1)
    View Product: Daydreamers Long Sleeve Onesie

    Daydreamers

    Long Sleeve Onesie
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    $11
    Old Navy Short Sleeve Onesie (view 2)Old Navy Short Sleeve Onesie (view 1)
    View Product: Old Navy Short Sleeve Onesie

    Old Navy

    Short Sleeve Onesie
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    18% off estimated retail
    Zara Jeggings (view 2)Zara Jeggings (view 1)
    View Product: Zara Jeggings

    Zara

    Jeggings
    Size 12-18 mo
    $11.99 $9.59 20% off with code THANKU
    45% off estimated retail
    Bundles Long Sleeve Onesie (view 2)Bundles Long Sleeve Onesie (view 1)
    View Product: Bundles Long Sleeve Onesie

    Bundles

    Long Sleeve Onesie
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    $11
    BAILEY'S BLOSSOMS Special Occasion Dress (view 2)BAILEY'S BLOSSOMS Special Occasion Dress (view 1)
    View Product: BAILEY'S BLOSSOMS Special Occasion Dress

    BAILEY'S BLOSSOMS

    Special Occasion Dress
    Size 12-18 mo
    $13.99 $11.19 20% off with code THANKU
    61% off estimated retail
    Bella + Canvas Short Sleeve Onesie (view 2)Bella + Canvas Short Sleeve Onesie (view 1)
    View Product: Bella + Canvas Short Sleeve Onesie

    Bella + Canvas

    Short Sleeve Onesie
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    $7
    Ruffle Butts Long Sleeve Top (view 2)Ruffle Butts Long Sleeve Top (view 1)
    View Product: Ruffle Butts Long Sleeve Top

    Ruffle Butts

    Long Sleeve Top
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    27% off estimated retail
    Assorted Brands Dress (view 2)Assorted Brands Dress (view 1)
    View Product: Assorted Brands Dress

    Assorted Brands

    Dress
    Size 12-18 mo
    $12.99 $10.39 20% off with code THANKU
    55% off estimated retail
    Little Wonders Short Sleeve Onesie (view 2)Little Wonders Short Sleeve Onesie (view 1)
    View Product: Little Wonders Short Sleeve Onesie

    Little Wonders

    Short Sleeve Onesie
    Size 12-18 mo
    $4.99 $3.99 20% off with code THANKU
    28% off estimated retail
    Baby Gap Short Sleeve Onesie (view 2)Baby Gap Short Sleeve Onesie (view 1)
    View Product: Baby Gap Short Sleeve Onesie

    Baby Gap

    Short Sleeve Onesie
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    43% off estimated retail
    Shein Short Sleeve Onesie (view 2)Shein Short Sleeve Onesie (view 1)
    View Product: Shein Short Sleeve Onesie

    Shein

    Short Sleeve Onesie
    Size 12-18 mo
    $5.99 $4.79 20% off with code THANKU
    14% off estimated retail
    Janie and Jack Dress (view 2)Janie and Jack Dress (view 1)
    View Product: Janie and Jack Dress

    Janie and Jack

    Dress
    Size 12-18 mo
    $10.99 $8.79 20% off with code THANKU
    82% off estimated retail
    Assorted Brands Short Sleeve Onesie (view 2)Assorted Brands Short Sleeve Onesie (view 1)
    View Product: Assorted Brands Short Sleeve Onesie

    Assorted Brands

    Short Sleeve Onesie
    Size 12-18 mo
    $6.99 $5.59 20% off with code THANKU
    53% off estimated retail
    Old Navy Long Sleeve Onesie (view 2)Old Navy Long Sleeve Onesie (view 1)
    View Product: Old Navy Long Sleeve Onesie

    Old Navy

    Long Sleeve Onesie
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    18% off estimated retail
    Gymboree Cardigan (view 2)Gymboree Cardigan (view 1)
    View Product: Gymboree Cardigan

    Gymboree

    Cardigan
    Size 12-18 mo
    $11.99 $9.59 20% off with code THANKU
    65% off estimated retail
    Koala Baby Long Sleeve Onesie (view 2)Koala Baby Long Sleeve Onesie (view 1)
    View Product: Koala Baby Long Sleeve Onesie

    Koala Baby

    Long Sleeve Onesie
    Size 12-18 mo
    $5.99 $4.79 20% off with code THANKU
    45% off estimated retail
    Baby Gap Short Sleeve Onesie (view 2)Baby Gap Short Sleeve Onesie (view 1)
    View Product: Baby Gap Short Sleeve Onesie

    Baby Gap

    Short Sleeve Onesie
    Size 12-18 mo
    $6.99 $5.59 20% off with code THANKU
    56% off estimated retail
    OshKosh B'gosh Shorts (view 2)OshKosh B'gosh Shorts (view 1)
    View Product: OshKosh B'gosh Shorts

    OshKosh B'gosh

    Shorts
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    61% off estimated retail
    Old Navy Short Sleeve Onesie (view 2)Old Navy Short Sleeve Onesie (view 1)
    View Product: Old Navy Short Sleeve Onesie

    Old Navy

    Short Sleeve Onesie
    Size 12-18 mo
    $10.99 $8.79 20% off with code THANKU
    $11
    Old Navy Shorts (view 2)Old Navy Shorts (view 1)
    View Product: Old Navy Shorts

    Old Navy

    Shorts
    Size 12-18 mo
    $10.99 $8.79 20% off with code THANKU
    21% off estimated retail
    Assorted Brands Short Sleeve Onesie (view 2)Assorted Brands Short Sleeve Onesie (view 1)
    View Product: Assorted Brands Short Sleeve Onesie

    Assorted Brands

    Short Sleeve Onesie
    Size 12-18 mo
    $6.99 $5.59 20% off with code THANKU
    53% off estimated retail
    Old Navy One Piece Swimsuit (view 2)Old Navy One Piece Swimsuit (view 1)
    View Product: Old Navy One Piece Swimsuit

    Old Navy

    One Piece Swimsuit
    Size 12-18 mo
    $12.99 $10.39 20% off with code THANKU
    27% off estimated retail
    Baby Gap Shorts (view 2)Baby Gap Shorts (view 1)
    View Product: Baby Gap Shorts

    Baby Gap

    Shorts
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    57% off estimated retail
    Baby Girl Skirt (view 2)Baby Girl Skirt (view 1)
    View Product: Baby Girl Skirt

    Baby Girl

    Skirt
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    35% off estimated retail
    Fox Leggings (view 2)Fox Leggings (view 1)
    View Product: Fox Leggings

    Fox

    Leggings
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Unbranded Short Sleeve Onesie (view 2)Unbranded Short Sleeve Onesie (view 1)
    View Product: Unbranded Short Sleeve Onesie

    Unbranded

    Short Sleeve Onesie
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    46% off estimated retail
    Old Navy Short Sleeve Onesie (view 2)Old Navy Short Sleeve Onesie (view 1)
    View Product: Old Navy Short Sleeve Onesie

    Old Navy

    Short Sleeve Onesie
    Size 12-18 mo
    $6.99 $5.59 20% off with code THANKU
    36% off estimated retail
    Splendid Shorts (view 2)Splendid Shorts (view 1)
    View Product: Splendid Shorts

    Splendid

    Shorts
    Size 12-18 mo
    $6.99 $5.59 20% off with code THANKU
    68% off estimated retail
    Old Navy Dress (view 2)Old Navy Dress (view 1)
    View Product: Old Navy Dress

    Old Navy

    Dress
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    60% off estimated retail
    Old Navy Shorts (view 2)Old Navy Shorts (view 1)
    View Product: Old Navy Shorts

    Old Navy

    Shorts
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    35% off estimated retail
    Old Navy Shorts (view 2)Old Navy Shorts (view 1)
    View Product: Old Navy Shorts

    Old Navy

    Shorts
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    35% off estimated retail
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