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!
133 items
Sort by:
![Assorted Brands Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/611895789/complimentary.jpg)
![Assorted Brands Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/611895778/complimentary.jpg)
Assorted Brands
Short Sleeve Onesie
Size 0-3 mo
$6.99 $3.84 45% off with code GOBIG
53% off estimated retail![Kyle & Deena Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/611203281/complimentary.jpg)
![Kyle & Deena Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/611203263/complimentary.jpg)
Kyle & Deena
Short Sleeve Onesie
Size 0-3 mo
$4.99 $2.74 45% off with code GOBIG
28% off estimated retail![Kyle & Deena Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/608766994/complimentary.jpg)
![Kyle & Deena Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/608766958/complimentary.jpg)
Kyle & Deena
Short Sleeve Onesie
Size 0-3 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/601060948/complimentary.jpg)
![Laura Ashley Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/601060918/complimentary.jpg)
Laura Ashley
Short Sleeve Onesie
Size 0-3 mo
$8.99 $4.94 45% off with code GOBIG
40% off estimated retail![Nicole Miller New York Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/600807157/complimentary.jpg)
![Nicole Miller New York Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/600807128/complimentary.jpg)
Nicole Miller New York
Short Sleeve Onesie
Size 0-3 mo
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Kyle & Deena Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/600231912/complimentary.jpg)
![Kyle & Deena Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/600231866/complimentary.jpg)
Kyle & Deena
Short Sleeve Onesie
Size 0-3 mo
$4.99 $2.74 45% off with code GOBIG
28% off estimated retail![Nicole Miller New York Short Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/598903995/complimentary.jpg)
![Nicole Miller New York Short Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/598903936/complimentary.jpg)
Nicole Miller New York
Short Sleeve Outfit
Size 0-3 mo
$8.99 $4.94 45% off with code GOBIG
18% off estimated retail![Disney Baby Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/594644005/complimentary.jpg)
![Disney Baby Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/594643918/complimentary.jpg)
Disney Baby
Short Sleeve Onesie
Size 0-3 mo
$4.99 $2.74 45% off with code GOBIG
28% off estimated retail![Duck Duck Goose Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/593153046/complimentary.jpg)
![Duck Duck Goose Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/593152991/complimentary.jpg)
Duck Duck Goose
Short Sleeve Onesie
Size 0-3 mo
$4.99 $2.74 45% off with code GOBIG
28% off estimated retail![7 For All Mankind Long Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/592394893/complimentary.jpg)
![7 For All Mankind Long Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/592394828/complimentary.jpg)
7 For All Mankind
Long Sleeve Outfit
Size 0-3 mo
$9.99 $5.49 45% off with code GOBIG
69% off estimated retail![Assorted Brands Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/593677220/complimentary.jpg)
![Assorted Brands Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/593677150/complimentary.jpg)
Assorted Brands
Long Sleeve Onesie
Size 0-3 mo
$16.99 $9.34 45% off with code GOBIG
51% off estimated retail![Laura Ashley Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/592784415/complimentary.jpg)
![Laura Ashley Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/592784352/complimentary.jpg)
Laura Ashley
Short Sleeve Onesie
Size 0-3 mo
$8.99 $4.94 45% off with code GOBIG
40% off estimated retail![Daisy Fuentes Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/590291447/complimentary.jpg)
![Daisy Fuentes Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/590291577/complimentary.jpg)
Daisy Fuentes
Long Sleeve Onesie
Size 0-3 mo
$5.99 $3.29 45% off with code GOBIG
72% off estimated retail![Cloud Island Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/589241341/complimentary.jpg)
![Cloud Island Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/589241316/complimentary.jpg)
Cloud Island
Long Sleeve Onesie
Size 0-3 mo
$8.99 $4.94 45% off with code GOBIG
18% off estimated retail![Child of Mine by Carter's Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/587985308/complimentary.jpg)
![Child of Mine by Carter's Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/587985195/complimentary.jpg)
Child of Mine by Carter's
Long Sleeve Onesie
Size 0-3 mo
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Child of Mine by Carter's Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/587985024/complimentary.jpg)
![Child of Mine by Carter's Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/587984948/complimentary.jpg)
Child of Mine by Carter's
Long Sleeve Onesie
Size 0-3 mo
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Cynthia Rowley TJX Faux Fur Vest (view 2)](https://cf-assets-thredup.thredup.com/assets/586860888/complimentary.jpg)
![Cynthia Rowley TJX Faux Fur Vest (view 1)](https://cf-assets-thredup.thredup.com/assets/586860815/complimentary.jpg)
Cynthia Rowley TJX
Faux Fur Vest
Size 0-3 mo
$11.99 $6.59 45% off with code GOBIG
66% off estimated retail![Nicole Miller New York Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/588692164/complimentary.jpg)
![Nicole Miller New York Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/588691936/complimentary.jpg)
Nicole Miller New York
Short Sleeve Onesie
Size 0-3 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/588233387/complimentary.jpg)
![Jessica Simpson Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/588233346/complimentary.jpg)
Jessica Simpson
Long Sleeve Onesie
Size 0-3 mo
$10.99 $6.04 45% off with code GOBIG
31% off estimated retail![Assorted Brands Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/588225734/complimentary.jpg)
![Assorted Brands Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/588225715/complimentary.jpg)
Assorted Brands
Short Sleeve Onesie
Size 0-3 mo
$7.99 $4.39 45% off with code GOBIG
46% off estimated retail![Little Wonders Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/587861513/complimentary.jpg)
![Little Wonders Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/587861452/complimentary.jpg)
Little Wonders
Long Sleeve Onesie
Size 0-3 mo
$8.99 $4.94 45% off with code GOBIG
18% off estimated retail![Little Beginnings Long Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/581647718/complimentary.jpg)
![Little Beginnings Long Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/581647572/complimentary.jpg)
Little Beginnings
Long Sleeve Outfit
Size 0-3 mo
$6.99 $3.84 45% off with code GOBIG
36% off estimated retail![Little Beginnings Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/582504813/complimentary.jpg)
![Little Beginnings Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/582504770/complimentary.jpg)
Little Beginnings
Short Sleeve Onesie
Size 0-3 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Nicole Miller New York Long Sleeve Top (view 2)](https://cf-assets-thredup.thredup.com/assets/574571007/complimentary.jpg)
![Nicole Miller New York Long Sleeve Top (view 1)](https://cf-assets-thredup.thredup.com/assets/574570942/complimentary.jpg)
Nicole Miller New York
Long Sleeve Top
Size 0-3 mo
$6.99 $3.84 45% off with code GOBIG
56% off estimated retail![7 For All Mankind Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/578522160/complimentary.jpg)
![7 For All Mankind Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/578522095/complimentary.jpg)
7 For All Mankind
Short Sleeve Onesie
Size 0-3 mo
$12.99 $7.14 45% off with code GOBIG
40% off estimated retail![Nicole Miller New York Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/578101571/complimentary.jpg)
![Nicole Miller New York Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/578101544/complimentary.jpg)
Nicole Miller New York
Short Sleeve Onesie
Size 0-3 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/575977401/complimentary.jpg)
![Jessica Simpson Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/575977245/complimentary.jpg)
Jessica Simpson
Long Sleeve Onesie
Size 0-3 mo
$8.99 $4.94 45% off with code GOBIG
43% off estimated retail![First Impressions Short Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/571472633/complimentary.jpg)
![First Impressions Short Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/571472604/complimentary.jpg)
First Impressions
Short Sleeve Outfit
Size 0-3 mo
$10.99 $6.04 45% off with code GOBIG
38% off estimated retail![Nicole Miller New York Sweatshirt (view 2)](https://cf-assets-thredup.thredup.com/assets/570283818/complimentary.jpg)
![Nicole Miller New York Sweatshirt (view 1)](https://cf-assets-thredup.thredup.com/assets/570283714/complimentary.jpg)
Nicole Miller New York
Sweatshirt
Size 0-3 mo
$11.99 $6.59 45% off with code GOBIG
65% off estimated retail![Nicole Miller New York Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/569897290/complimentary.jpg)
![Nicole Miller New York Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/569897235/complimentary.jpg)
Nicole Miller New York
Short Sleeve Onesie
Size 0-3 mo
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Wonder Nation Two Piece Swimsuit (view 2)](https://cf-assets-thredup.thredup.com/assets/568736428/complimentary.jpg)
![Wonder Nation Two Piece Swimsuit (view 1)](https://cf-assets-thredup.thredup.com/assets/568736364/complimentary.jpg)
Wonder Nation
Two Piece Swimsuit
Size 0-3 mo
$8.99 $4.94 45% off with code GOBIG
18% off estimated retail![Assorted Brands Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/567287322/complimentary.jpg)
![Assorted Brands Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/567287253/complimentary.jpg)
Assorted Brands
Short Sleeve Onesie
Size 0-3 mo
$9.99 $5.49 45% off with code GOBIG
33% off estimated retail![Cloud Island Long Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/565475337/complimentary.jpg)
![Cloud Island Long Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/565475285/complimentary.jpg)
Cloud Island
Long Sleeve Onesie
Size 0-3 mo
$5.99 $3.29 45% off with code GOBIG
45% off estimated retail![Mon Cheri Baby Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/557482700/complimentary.jpg)
![Mon Cheri Baby Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/557482660/complimentary.jpg)
Mon Cheri Baby
Short Sleeve Onesie
Size 0-3 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/553932265/complimentary.jpg)
![Assorted Brands Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/553932195/complimentary.jpg)
Assorted Brands
Short Sleeve Onesie
Size 0-3 mo
$6.99 $3.84 45% off with code GOBIG
53% off estimated retail![Wonder Nation Long Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/548095083/complimentary.jpg)
![Wonder Nation Long Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/548094984/complimentary.jpg)
Wonder Nation
Long Sleeve Outfit
Size 0-3 mo
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Little Beginnings Short Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/544744688/complimentary.jpg)
![Little Beginnings Short Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/544744642/complimentary.jpg)
Little Beginnings
Short Sleeve Outfit
Size 0-3 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Emporio Baby Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/538087788/complimentary.jpg)
![Emporio Baby Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/538087720/complimentary.jpg)
Emporio Baby
Short Sleeve Onesie
Size 0-3 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Daisy Fuentes Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/566103981/complimentary.jpg)
![Daisy Fuentes Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/566103957/complimentary.jpg)
Daisy Fuentes
Short Sleeve Onesie
Size 0-3 mo
$8.99 $4.94 45% off with code GOBIG
40% off estimated retail![Nicole Miller New York Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/530077271/complimentary.jpg)
![Nicole Miller New York Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/530077197/complimentary.jpg)
Nicole Miller New York
Short Sleeve Onesie
Size 0-3 mo
$8.99 $4.94 45% off with code GOBIG
18% off estimated retail![7 For All Mankind Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/530291525/complimentary.jpg)
![7 For All Mankind Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/530291495/complimentary.jpg)
7 For All Mankind
Short Sleeve Onesie
Size 0-3 mo
$9.99 $5.49 45% off with code GOBIG
54% off estimated retail![Jessica Simpson Short Sleeve Outfit (view 2)](https://cf-assets-thredup.thredup.com/assets/527857928/complimentary.jpg)
![Jessica Simpson Short Sleeve Outfit (view 1)](https://cf-assets-thredup.thredup.com/assets/527857853/complimentary.jpg)
Jessica Simpson
Short Sleeve Outfit
Size 0-3 mo
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Juicy Couture Short Sleeve Onesie (view 2)](https://cf-assets-thredup.thredup.com/assets/518860777/complimentary.jpg)
![Juicy Couture Short Sleeve Onesie (view 1)](https://cf-assets-thredup.thredup.com/assets/518860745/complimentary.jpg)
Juicy Couture
Short Sleeve Onesie
Size 0-3 mo
$8.99 $4.94 45% off with code GOBIG
79% off estimated retail