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Comfortable and Stylish Girl Underwear for Little and Teen Girls
Introducing our Girls Organic Cotton Underwear, specially designed with little and teen girls in mind. Made from premium organic cotton, this underwear is not only gentle on the skin but also eco-friendly. With stretch fabric, flat seams, and covered elastic, these undergarments provide unparalleled comfort and the perfect fit.
We understand the importance of comfort for growing girls, which is why our Girls Organic Cotton Underwear is crafted with precision. The stretch fabric ensures freedom of movement, allowing your little ones to run, play, and explore with ease. The flat seams eliminate irritation and chafing, ensuring a smooth and comfortable experience throughout the day. The covered elastic waistband adds an extra layer of comfort, ensuring that the underwear stays in place without causing any discomfort.
High-Quality Girls Underwear for Young Girls
With its impeccable construction and attention to detail, our girls' underwear offers the perfect blend of comfort and style. Whether it's for everyday wear or special occasions, these underwear are sure to become a favorite.
When it comes to your child's comfort, quality matters. These undergarments are durable, long-lasting, and easy to care for, making them an excellent investment for busy moms. Rest assured, our girls' underwear will keep up with your little one's active lifestyle and provide unmatched comfort all day long.
Choose the Girls Organic Cotton Underwear for your little and teen girls, and give them the comfort and style they deserve.
Shop now at Mightly.com and experience the joy of finding the perfect underwear for your child.
Please note the sizing on these underwear is different than our apparel. Please check the numeric sizing and/or size chart before ordering. If your child is between sizes, or you are unsure which size to select, we recommend choosing the smaller size in this style.
-95% GOTS Certified Organic Cotton / 5% Spandex
-Fair Trade CertifiedTM Factory
-Full back coverage
- Fabric covered elastic
95% Organic Cotton / 5% Spandex. Pre-Shrunk Fabric.
Machine Wash Cold. Tumble Dry.
Designed in California.
Made in India.
Global Organic Textile Standard (GOTS) Certified

Fair Trade
Certified Factory

Girls Underwear Size Chart
Size | Numeric Size | Height | Weight |
XX-Small | 2T/3T | 35" - 40" | 41 - 45 lbs |
X-Small | 4T/5T | 41" - 46" | 46 - 52 lbs |
Small | 6/7 | 47" - 50" | 53 - 59 lbs |
Medium | 8 | 50" - 53" | 59 - 65 lbs |
Large | 10 | 53" - 56" | 65 - 73 lbs |
X-Large | 12 | 56" - 59" | 73 - 81 lbs |
XX-Large | 14 | 59" - 62" | 81 - 95 lbs |
Girls Bralette Size Chart
Size | Numeric Size | Height | Weight | Band |
Medium | 8 | 50" - 53" | 59 - 65 lbs | 22" |
Large | 10 | 53" - 56" | 65 - 73 lbs | 23" |
X-Large | 12 | 56" - 59" | 73 - 81 lbs | 24 1/2" |
XX-Large | 14 | 59" - 62" | 81 - 95 lbs | 26" |
Boys Underwear Size Chart
Size | Height | Weight | Waist | Hip |
X-Small (4/5) | 43" - 46" | 46 - 52 lbs | 23" | 24" |
Small (6/7) | 47" - 50" | 53 - 59 lbs | 23 1/2" | 25 1/2" |
Medium (8) | 50" - 53" | 59 - 65 lbs | 23 1/2" |
27" |
Large (10) | 53" - 56" | 65 - 73 lbs | 24" | 28 1/2" |
X-Large (12) |
56" - 59" | 73- 81 lbs | 24 1/2" | 30" |
XX-Large (14) |
59"- 62" | 81 - 95 lbs | 25" | 31 1/2" |
Kids Sleepwear Size Chart
Size | Height | Weight | Chest | Waist | Hip |
2T | 33" - 36" | 30 - 33 lbs | 20" | 20" | 21" |
3T | 36" - 39" | 33 - 36 lbs | 21" | 21" | 22" |
4T | 39" - 42" | 36 - 40 lbs | 22" | 22" | 23" |
5T | 42" - 45" | 40 - 44 lbs | 23" | 22" | 24" |
6 | 45" - 48" | 44 - 50 lbs | 24" | 23" | 25" |
7 | 48" - 51" | 50 - 55 lbs | 25" | 23" | 26" |
8 | 51" - 54" | 55 - 60 lbs | 26" | 23"" | 27" |
10 | 54" - 56 1/2" | 60 - 68 lbs | 27" | 24" | 28" |
12 | 56 1/2" - 59" | 68 - 75 lbs | 28" | 24" | 30" |
14 | 59" - 62" | 75 - 85 lbs | 29" | 25" | 31" |
Adult Unisex Sleepwear Size Chart
Size | Inseam | Chest | Waist | Hip |
X-Small | 30" | 34" | 26" | 36" |
Small | 30.5" | 36" | 28" | 38" |
Medium | 31" | 39" | 31" |
41" |
Large | 31.5" | 42" | 34" | 44" |
X-Large |
31.5" | 46" | 38" | 48" |
XX-Large |
31.5" | 50" | 42" | 52" |
Kids Apparel Size Chart
Size | Height | Weight | Chest | Waist | Hip |
2T | 33" - 36" | 33 - 37 lbs | 20 1/2" | 20" | 21" |
3T | 36" - 39" | 37 - 41 lbs | 21 1/2" | 21" | 22" |
4T | 39" - 42" | 41 - 45 lbs | 22 1/2" | 22" | 23" |
X-Small (4/5) | 43" - 46" | 46 - 52 lbs | 23" - 24" | 23" | 24" |
Small (6/7) | 47" - 50" | 53 - 59 lbs | 24 1/2" - 25 1/2" | 23 1/2" | 25 1/2" |
Medium (8) | 50" - 53" | 59 - 65 lbs | 26 1/2" | 23 1/2" | 27" |
Large (10) | 53" - 56" | 65 - 73 lbs | 27 1/2" | 24" | 28 1/2" |
X-Large (12) | 56" - 59" | 73 - 81 lbs | 28 1/2" | 24 1/2" |
30" |
XX-Large (14) | 59" - 62" | 81 - 95 lbs | 29 1/2" | 25" |
31 1/2" |
Kids Sock Size
Size | Shoe Size |
Small | 9 - 11 |
Medium | 12 - 13 |
Large | 1 - 4 |
Domestic Shipping:
Free standard domestic shipping on all orders over $75.00.
$5.90 flat rate for standard domestic shipping for orders under $75.00.
Standard domestic shipping takes 5 - 9 business days.
Express shipping is available on all orders for $25.
International Shipping:
Canada - $20 flat rate for standard shipping. Expedited shipping is available, cost will be shown in cart. Shipping rates do not include duties and taxes, estimated duties and taxes are shown in the cart.
Australia - $50 flat rate for standard shipping. Expedited shipping is available, cost will be shown in cart. Shipping rates do not include duties and taxes, estimated duties and taxes are shown in the cart.
All other countries - email hello@mightly.com for a quote.