Best Young Girls Underwear: Top Comfortable & Stylish Picks
Ever worn uncomfortable undies? They itch, they ride up, and you can’t stop thinking about them all day. Now imagine that happening in the middle of a class presentation or dance recital.
That’s why finding the right underwear matters more than you think. Comfort isn’t just a nice-to-have; it’s the difference between feeling distracted and feeling like yourself.
This guide rounds up well-fitting garments designed for growing bodies and changing minds. No scratchy seams. No awkward fits. Just easy, everyday pairs they’ll actually want to wear, and you’ll feel good about buying.
What Makes Good Underwear for Young Girls?
As your girl moves through her teen years, she's figuring out her body, her routine, and her sense of what feels right. Undergarments might seem like a small detail, but when they fit well and feel good, they can make a big difference to her confidence, focus, and comfort throughout the day.
Here’s what really matters when choosing a pair for growing tweens:
Soft, stretchy fabrics
Look for modal, organic cotton, or bamboo blends that feel smooth against the skin and flex with her as she moves. Avoid stiff waistbands or fabrics that lose shape after a few washes.
Tag-free, seamless construction
Seams, tags, and labels can be deal-breakers, especially for those who are sensory-sensitive. Seamless styles or those with flatlock stitching reduce distractions and help her feel at ease from the moment she gets dressed.
Breathable + moisture-wicking
Whether she's in class, running around outside, or at dance rehearsal, garments that breathe help prevent discomfort, odor, and overheating—bonus points for natural fibers with a touch of spandex for stretch.
Age-appropriate coverage
At this stage, she doesn't want to wear anything that feels "babyish," but she's also not ready for a grown-up. Mid-rise briefs, hipsters, or boyshorts offer the right balance of privacy and style.
Size flexibility that lasts
Growth spurts don’t wait for a new pack of undies. Choose those with gentle stretch, wide waistbands, and forgiving cuts to help you avoid the ‘already outgrown’ issue a month later. Some brands even use dual sizing (like 10/12) to cover in-between stages.
Washes well, wears well
Life is messy. Look for styles that hold their shape, don’t pill, and don’t shrink in the wash. Machine-washable, tumble-dry-safe fabrics make laundry simpler for both of you.
A say in the style
If she likes how it looks, she's more likely to wear it. Choose from brands that offer fun colors, but skip anything that feels too mature. A simple design she can feel confident in goes a long way.
How to Find the Right Size for Your Tween
Sizing can feel like guesswork, especially when your child is somewhere between kids' and teen sizes. One brand's 10/12 might fit like another's 14. So, instead of relying on the number on the label, here's a better way to get the right fit:
Start with a quick measurement
Use a measuring tape to measure around her waist (just above the belly button) and hips (around the fullest part). Jot the numbers down.
Always check the brand’s size chart.
Seriously, every brand is different. Some run small, some run big, and the charts don’t always line up with age. Look for waist and hip measurements, not just age ranges.
When in doubt, size up
If she’s between sizes, go up a size. Wearing something slightly looser is almost always more comfortable, and it’ll last through that next growth spurt.
Look for stretch, not squeeze.
Flexible fabrics (like modal or bamboo blends) are more forgiving than rigid cotton. A good fit should feel snug, not tight, with enough give to move freely.
Expect some trial and error.
Sometimes, you won’t know until she tries them on. Choose brands with easy return policies, or grab a few different sizes if you're unsure.
Which Styles Are Best for Tweens?
Not every tween will love the same design. Here’s a quick guide to help her find what fits best.
|
Style |
Why They’ll Like It |
Best For |
|
Briefs |
Full coverage, no wedgies. A solid starter. |
Everyday wear, first pair |
|
Bikinis |
A little lower rise, but still comfy. |
Wearing with jeans or leggings |
|
Boyshorts |
No pinch. Great for under skirts or uniforms. |
Sports, dance, or school uniforms |
|
Hipsters |
Modern cuts that sit low without feeling skimpy. |
Older tweens or those wearing under-mid-rise clothes |
Our Favourite Picks for Young Girls’ Underwear
These are the brands that tick all the boxes: comfortable, age-appropriate, and built to keep up with growing, moving, ever-changing bodies. Whether your girl is eight or edging into her teens, these companies offer softness, simplicity, and support where it counts.
1. Bleuet
Best for: Everyday comfort, sensory-friendly wear, and all-around versatility.
We’re not just known for our bras for tweens, we’ve also got a pair of underwear that does it all! The Chloe Seamless Bikini Brief is a parent-approved style, for good reason. It’s soft, seamless, and thoughtfully designed to support growing bodies through school days, sports, sleepovers, and everything in between. From sensitive skin to shifting sizes, our briefs are made to adapt, not irritate.
Key Features:
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Best all-rounder: Just like our teens bra collection, Chloe is built to fit nicely while disappearing beneath clothes. It's the pair she'll reach for first and the one you'll wish you'd bought in multiples.
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Sensory-friendly by design: No tags. No thick seams. No stiff waistbands. Just a ultra-soft brief that stays in place without digging or rubbing. It's ideal for anyone who struggles with textures or just wants a pair that feels like nothing.
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Made for movement: Thanks to the modal-spandex blend and stretch waistband, Chloe briefs moves with her so she can bend, twist, cartwheel, or sit through math class without needing to readjust.
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Inclusive sizing and age-appropriate style: Available in sizes 6–24 and gentle, neutral colorways, Bleuet underwear is designed for all body types and every kind of day.
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Parent-approved durability: Machine-washable, fade-resistant, and built to last. These hold up wash after wash, no shrinking, pilling, or stretching out. “My 10-year-old says these are the best underwear she’s ever worn!... Soft, comfy, and don’t ride up—she’s obsessed.”
Good to know: If she changes her mind or needs a different size, our Returns for Good program turns unworn pairs into donations for girls in foster care through Hailey's Haven.
2. Lucky & Me
Best for: Organic cotton lovers
Lucky & Me provides a wide range of garments for girls aged 2 to 14, including briefs, bikinis, boyshorts, and shorties. Their focus is on simple, everyday wear made with kids in mind, particularly those who prefer minimal fuss and familiar silhouettes. Many of their bestsellers are available in multipacks with fun colors or playful prints.
Key Features:
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Wide age range: Sizing from 2Y to 14Y, with specific tween packs available for ages 11–14.
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Organic materials: Uses a combination of GOTS-certified organic cotton, modal and cotton blends.
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Multi-style options: Offers briefs, bikinis, shorties, and boyshorts to suit different preferences.
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Ethically produced: Factories are certified by WRAP, SA8000, or Sedex, ensuring responsible labor practices.
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Mix-and-match bundles Are Available in 3–7 pack formats, featuring both neutral and patterned sets.
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Returns & rewards: 30-day free return policy within the U.S. and a points-based loyalty program.
3. Hanna Andersson
Best for: Playful prints and long-term wear
Hanna Andersson is known for its cheerful designs, full coverage cuts, and a strong reputation for lasting wash after wash. The brand uses GOTS-certified organic cotton across its range and offers a variety of styles, including briefs, hipsters, shorts, and training underwear.
Their collections often feature popular characters, from Star Wars to Disney Princesses, alongside stripes and solids, giving kids a choice between fun and classic.
Key Features:
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Certified organic: All collections are made with GOTS-certified organic cotton.
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Flat seams & full coverage: Will sit smoothly beneath clothes, with traditional cuts that avoid riding up.
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Durable through repeated washing: Built to maintain shape and hold up over time.
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Print variety: Includes licensed characters, playful patterns, and basics.
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Pack options: Available in multiple bundle sizes to simplify restocking.
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Extended size range: Covers toddlers to older kids, with sizing typically up to age 14.
4. Athleta Girl
Best for: Active tweens and everyday wear with leggings
Athleta Girl is designed with movement in mind. These are performance-style basics made with technical fabrics and lightweight cuts that work well under leggings, shorts, or uniforms. Many of their garments feature moisture-wicking materials and come in multipacks, offering practical options for school days, sports, and travel.
Part of Gap Inc., Athleta is a Certified B Corp and produces many of its products in Fair Trade Certified™ factories. Their focus on movement, sustainability, and youth empowerment extends across their full product line, including undergarments.
Key Features
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Made for movement: Cut to stay in place during sports, play, and daily activities, especially when wearing leggings.
Moisture-wicking fabrics: Lightweight, quick-dry materials that help reduce sweat buildup. -
Modern fit options: Includes bikinis, boyshorts, and cotton blends in multipack formats.
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Fair Trade Certified™ production: Many items are sewn in factories that meet international labor and wage standards.
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Inclusive sizing: Available from XS (6) through XXL (16), with options that work for both younger and older tweens.
5. Fruit of the Loom
Best for: Budget-friendly basics in bulk
Fruit of the Loom offers value-focused multipacks that are widely available across the U.S. and Europe. Known for their traditional cuts and simple styling, these briefs and bikinis are great for everyday use. They're tag-free, come in a range of colors, and are easy to wash and wear.
These are a good go-to option for families looking to stock up quickly without spending much. They’re especially practical for camp, school, or fast-growing kids who go through clothes often.
Key Features:
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Low-cost multipacks: Commonly available in 6- to 10-pair bundles.
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Cotton basics: Made from cotton with some spandex blends.
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Tag-free: To reduce irritation with printed labels inside.
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Classic cuts: Full-coverage briefs and bikinis in neutral and colorful options.
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Widely available: Sold online and in-store at major U.S. retailers like Walmart and Target.
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Basic sustainability steps: Reduced packaging, recyclable materials, and transparency in production practices—part of their ongoing “Fruit Way” sustainability initiative.
6. Modibodi
Best for: First periods and leak-proof peace of mind
Modibodi is one of the leading brands for reusable period panties, offering a teen-specific range that's built to handle everything from light spotting to heavy flow. These look and feel like regular undies but with built-in leak-proof tech that absorbs period blood, sweat, and odor—without the need for pads or tampons.
It's a great option for school, sleepovers, or sports, especially for anyone wanting something simple, discreet, and reliable.
Key Features:
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Built-in absorbent lining: Patented 3mm lining absorbs leaks, odor and moisture.
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Teen-focused sizing: Youth sizes 8–16 are made for changing bodies.
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Comfy and secure: Feels like regular underwear with no bulky layers.
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Sustainable choice: Replaces disposables and lasts over 100 washes.
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B Corp certified: Ethically made and committed to social impact.
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Give-back program: Donations made to period equity orgs like Bloody Good Period and Freedom4Girls.
Final Thoughts
The right pair of young girls' underwear should help her move through the day without distraction. No bunching, no tugging, no irritation—just a fit that works for her body and her routine.
Focus on what feels right for her, not what’s trending. Garments that are soft, secure, and age-appropriate will always be the better choice. Let her try a few, listen to what she likes, and keep it simple from there.
And if she’s also ready to get her first bra, we’ve got you covered with our organic sustainable bras collection.
FAQs
What is the most common girls' underwear?
Briefs and bikinis are the most popular styles for tweens. They offer full or moderate coverage, stay in place, and are easy to wear with everything from jeans to school uniforms.
How to measure kids' underwear size?
Use a tape measure to check waist and hip measurements, then compare them to the brand’s size chart. Sizing varies a lot between brands, so it’s always worth checking—even if the label says “10/12.”
What kind of underwear do girls wear to bed?
Typically, they prefer breathable styles, such as cotton briefs or boyshorts, for sleeping. Some opt for looser fits or seamless pairs to avoid any pinching overnight.
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