Trending Categories
Trending Brands
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!
396 items
Sort by:
![Little Beginnings Short Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/567642438/complimentary.jpg)
![Little Beginnings Short Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/567642353/complimentary.jpg)
Little Beginnings
Short Sleeve Outfit
Size 6-9 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Assorted Brands Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/565842488/complimentary.jpg)
![Assorted Brands Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/565842313/complimentary.jpg)
Assorted Brands
Short Sleeve Onesie
Size 6-9 mo
$3.99 $2.19 45% off with code GOBIG
73% off estimated retail![Assorted Brands Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/566690245/complimentary.jpg)
![Assorted Brands Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/566690217/complimentary.jpg)
Assorted Brands
Short Sleeve Onesie
Size 6-9 mo
$8.99 $4.94 45% off with code GOBIG
40% off estimated retail![First Impressions Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/567664223/complimentary.jpg)
![First Impressions Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/567664276/complimentary.jpg)
First Impressions
Short Sleeve Onesie
Size 6-9 mo
$6.99 $3.84 45% off with code GOBIG
61% off estimated retail![Kyle & Deena Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/565836930/complimentary.jpg)
![Kyle & Deena Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/565836879/complimentary.jpg)
Kyle & Deena
Short Sleeve Onesie
Size 6-9 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Kyle & Deena Short Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/565190831/complimentary.jpg)
![Kyle & Deena Short Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/565190719/complimentary.jpg)
Kyle & Deena
Short Sleeve Outfit
Size 6-9 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Little Beginnings Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/564615273/complimentary.jpg)
![Little Beginnings Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/564615183/complimentary.jpg)
Little Beginnings
Short Sleeve Onesie
Size 6-9 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Kyle & Deena Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/564707489/complimentary.jpg)
![Kyle & Deena Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/564707427/complimentary.jpg)
Kyle & Deena
Short Sleeve Onesie
Size 6-9 mo
$4.99 $2.74 45% off with code GOBIG
28% off estimated retail![Laura Ashley Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/562124476/complimentary.jpg)
![Laura Ashley Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/562124428/complimentary.jpg)
Laura Ashley
Short Sleeve Onesie
Size 6-9 mo
$5.99 $3.29 45% off with code GOBIG
60% off estimated retail![Wonder Nation Long Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/553563414/complimentary.jpg)
![Wonder Nation Long Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/553563356/complimentary.jpg)
Wonder Nation
Long Sleeve Outfit
Size 6-9 mo
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Jessica Simpson Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/560918235/complimentary.jpg)
![Jessica Simpson Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/560918153/complimentary.jpg)
Jessica Simpson
Long Sleeve Onesie
Size 6-9 mo
$8.99 $4.94 45% off with code GOBIG
43% off estimated retail![Nicole Miller New York Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/559997465/complimentary.jpg)
![Nicole Miller New York Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/559997436/complimentary.jpg)
Nicole Miller New York
Short Sleeve Onesie
Size 6-9 mo
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![BAILEY'S BLOSSOMS Long Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/560004415/complimentary.jpg)
![BAILEY'S BLOSSOMS Long Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/560004274/complimentary.jpg)
BAILEY'S BLOSSOMS
Long Sleeve Outfit
Size 5T
$15.99 $8.79 45% off with code GOBIG
40% off estimated retail![Child of Mine by Carter's Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/557655046/complimentary.jpg)
![Child of Mine by Carter's Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/557655007/complimentary.jpg)
Child of Mine by Carter's
Short Sleeve Onesie
Size 6-9 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Touched by Nature Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/558214395/complimentary.jpg)
![Touched by Nature Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/558214351/complimentary.jpg)
Touched by Nature
Short Sleeve Onesie
Size 6-9 mo
$7.99 $4.39 45% off with code GOBIG
11% off estimated retail![Assorted Brands Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/556503293/complimentary.jpg)
![Assorted Brands Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/556503225/complimentary.jpg)
Assorted Brands
Short Sleeve Onesie
Size 6-9 mo
$8.99 $4.94 45% off with code GOBIG
40% off estimated retail![Assorted Brands Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/557742862/complimentary.jpg)
![Assorted Brands Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/557742827/complimentary.jpg)
Assorted Brands
Short Sleeve Onesie
Size 6-9 mo
$9.99 $5.49 45% off with code GOBIG
33% off estimated retail![Rabbit Bear Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/556416936/complimentary.jpg)
![Rabbit Bear Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/556416874/complimentary.jpg)
Rabbit Bear
Short Sleeve Onesie
Size 6-9 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Laura Ashley Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/502446666/complimentary.jpg)
![Laura Ashley Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/502446604/complimentary.jpg)
Laura Ashley
Short Sleeve Onesie
Size 6-9 mo
$6.99 $3.84 45% off with code GOBIG
53% off estimated retail![Assorted Brands Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/552650547/complimentary.jpg)
![Assorted Brands Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/552650512/complimentary.jpg)
Assorted Brands
Long Sleeve Onesie
Size 6-9 mo
$9.99 $5.49 45% off with code GOBIG
54% off estimated retail![Assorted Brands Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/549220389/complimentary.jpg)
![Assorted Brands Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/549220272/complimentary.jpg)
Assorted Brands
Long Sleeve Onesie
Size 6-9 mo
$9.99 $5.49 45% off with code GOBIG
54% off estimated retail![Wonder Nation Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/548097225/complimentary.jpg)
![Wonder Nation Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/548097178/complimentary.jpg)
Wonder Nation
Short Sleeve Onesie
Size 6-9 mo
$4.99 $2.74 45% off with code GOBIG
28% off estimated retail![Made With Love Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/547376599/complimentary.jpg)
![Made With Love Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/547376436/complimentary.jpg)
Made With Love
Short Sleeve Onesie
Size 6-9 mo
$6.99 $3.84 45% off with code GOBIG
53% off estimated retail![Assorted Brands Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/547611809/complimentary.jpg)
![Assorted Brands Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/547611751/complimentary.jpg)
Assorted Brands
Short Sleeve Onesie
Size 6-9 mo
$6.99 $3.84 45% off with code GOBIG
53% off estimated retail![Harry & Violet Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/546533759/complimentary.jpg)
![Harry & Violet Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/546533731/complimentary.jpg)
Harry & Violet
Short Sleeve Onesie
Size 6-9 mo
$10.99 $6.04 45% off with code GOBIG
69% off estimated retail![Kyle & Deena Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/544942959/complimentary.jpg)
![Kyle & Deena Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/544942869/complimentary.jpg)
Kyle & Deena
Short Sleeve Onesie
Size 6-9 mo
$5.99 $3.29 45% off with code GOBIG
45% off estimated retail![Disney Baby Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/546202313/complimentary.jpg)
![Disney Baby Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/546202269/complimentary.jpg)
Disney Baby
Short Sleeve Onesie
Size 6-9 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Rabbit Bear Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/541497127/complimentary.jpg)
![Rabbit Bear Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/541497098/complimentary.jpg)
Rabbit Bear
Short Sleeve Onesie
Size 6-9 mo
$4.99 $2.74 45% off with code GOBIG
28% off estimated retail![Under Armour Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/531550015/complimentary.jpg)
![Under Armour Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/531549959/complimentary.jpg)
Under Armour
Short Sleeve Onesie
Size 6-9 mo
$9.99 $5.49 45% off with code GOBIG
44% off estimated retail![Juicy Couture Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/538319692/complimentary.jpg)
![Juicy Couture Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/538319669/complimentary.jpg)
Juicy Couture
Short Sleeve Onesie
Size 6-9 mo
$10.99 $6.04 45% off with code GOBIG
75% off estimated retail![Pink Velvet Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/532015945/complimentary.jpg)
![Pink Velvet Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/532015881/complimentary.jpg)
Pink Velvet
Short Sleeve Onesie
Size 6-9 mo
$8.99 $4.94 45% off with code GOBIG
40% off estimated retail![Jessica Simpson Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/531645457/complimentary.jpg)
![Jessica Simpson Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/565936915/complimentary.jpg)
Jessica Simpson
Short Sleeve Onesie
Size 6-9 mo
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Jessica Simpson Long Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/527826790/complimentary.jpg)
![Jessica Simpson Long Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/527826691/complimentary.jpg)
Jessica Simpson
Long Sleeve Outfit
Size 6-9 mo
$9.99 $5.49 45% off with code GOBIG
37% off estimated retail![Shabby Chic Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/527195383/complimentary.jpg)
![Shabby Chic Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/527195306/complimentary.jpg)
Shabby Chic
Short Sleeve Onesie
Size 6-9 mo
$8.99 $4.94 45% off with code GOBIG
40% off estimated retail![U.S. Polo Assn. Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/528055178/complimentary.jpg)
![U.S. Polo Assn. Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/528055151/complimentary.jpg)
U.S. Polo Assn.
Short Sleeve Onesie
Size 6-9 mo
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Assorted Brands Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/565240841/complimentary.jpg)
![Assorted Brands Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/565240745/complimentary.jpg)
Assorted Brands
Long Sleeve Onesie
Size 6-9 mo
$8.99 $4.94 45% off with code GOBIG
59% off estimated retail![First Impressions Long Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/525826330/complimentary.jpg)
![First Impressions Long Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/525826271/complimentary.jpg)
First Impressions
Long Sleeve Outfit
Size 6-9 mo
$8.99 $4.94 45% off with code GOBIG
66% off estimated retail![Heirloom by Polly Flinders Turtleneck Sweater (view 2)](https://cf-assets-thredup.thredup.com/assets/480066493/complimentary.jpg)
![Heirloom by Polly Flinders Turtleneck Sweater (view 1)](https://cf-assets-thredup.thredup.com/assets/480066423/complimentary.jpg)
Heirloom by Polly Flinders
Turtleneck Sweater
Size 6-9 mo
$9.99 $5.49 45% off with code GOBIG
63% off estimated retail