Young Teen Underwear: Best Soft, Comfy & Everyday Options
Shopping for young teen underwear can be surprisingly tricky. Every girl is different, some care about colors, others about seams or softness, and some just want something they don’t have to think about during the school day.
As parents, we want to make sure what they wear under their clothes is comfortable, age-appropriate, and built for their growing bodies.
That’s why we’ve rounded up a selection of the best brands out there today, each one chosen for its fit, feel, and thoughtful design. Whether your daughter is sporty, sensory-sensitive, starting her period, or just figuring out what she likes, you’ll find something here that works.
What to Look for in Young Teen Girls’ Underwear
There’s a lot more to girls' undergarments than picking a pack in her size. At this age, her body’s changing fast, and so are her preferences. The right choice is something that moves with her, feels good all day, and gives her the confidence to get on with school, sports, sleepovers or whatever life throws at her.
Here are the features we always look for:
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Soft, breathable fabrics: Cotton, modal, bamboo, and TENCEL™ are gentle on sensitive skin and help keep her cool and comfy.
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Stretch and flexibility: A good pair of panties should move with her, not bunch or dig in. Look for styles with added spandex or elastane.
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Seamless or low-profile seams: Especially helpful for anyone who is sensory-sensitive or finds scratchy seams distracting.
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Good coverage: Choose cuts like briefs, boyshorts, or bikinis that feel secure and age-appropriate.
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Durability: Undergarments get washed a lot. Look for stitching that holds and fabric that won’t wear thin after a few cycles.
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Inclusive sizing: Everybody is different. Brands that offer a range of sizes, not just small, medium, and large to make it easier to find a great fit.
How to Measure for the Right Fit
Getting the right size is half the battle. Many young teens are between kids’ and adult sizes, which can make shopping a bit confusing. A quick at-home measurement can save the guesswork and the returns.
Here’s how to measure:
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Waist: Wrap a measuring tape around her natural waistline, just above the belly button. Don’t pull too tight; the tape should lie flat but not dig in.
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Hips: Measure around the fullest part of her hips and bum. This gives the most accurate idea of how they’ll sit and stay in place.
Once you have the numbers, check the brand’s size chart (they vary more than you’d think). If she’s in between sizes, consider sizing up for comfort, especially with fitted styles like briefs or bikinis.
Tip: It’s worth rechecking every few months. They grow fast, and what fit a few months ago might now ride up or feel too snug.
Top Underwear Brands for Young Teen Girls
From cotton basics to period-proof pairs, these are the brands we’ve chosen for their thoughtful design, quality materials, and support at every stage of growing up.
|
Brand |
Best For |
Sizes |
Fabrics |
Multipacks |
|
Bleuet |
Comfort & sensory-friendly |
7–24 |
Modal, spandex |
Yes |
|
Yellowberry |
Style variety |
XS–Plus 1 |
Cotton blends |
Yes |
|
Hanna Andersson |
Organic cotton |
2–16 |
100% organic cotton |
Yes |
|
Thinx |
Period wear |
S–XL |
Cotton and elastane |
Yes |
|
AIMER |
Viscose blends |
10–18 |
Modal, viscose |
Yes |
1. Bleuet: Best Overall
At Bleuet, we design underwear for girls who are always on the move—growing bodies that need softness, stretch, and comfort from morning till night. Our Chloe Seamless Modal Bikini Brief, is made from a modal and spandex blend that’s breathable, soft, and flexible. With seamless, tag-free construction, it’s perfect for girls with sensory sensitivities or anyone wanting underwear that stays comfortable all day.
Our founder started Bleuet because she couldn’t find age-appropriate, skin-safe underwear for her own daughter. Today, families trust us to deliver basics that fit well, last through busy days, and keep growing girls feeling supported through whatever life throws at them.
Key features:
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Modal and spandex blend – Provides a soft, breathable, and stretchy fabric that moves with her.
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Sensory-friendly construction – Seamless and tag-free to minimize irritation for sensitive skin.
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Age-appropriate cuts – Designed specifically for tweens and teens, offering comfort without unnecessary frills.
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Inclusive sizing – Available in sizes 7/8 to 22/24, accommodating a wide range of body types.
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Multipack options – Offered in convenient 3- and 6-pack sets for easy wardrobe building.
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Hassle-free returns – Unworn items can be exchanged if the size isn't quite right.
2. Yellowberry: Best for Variety Of Styles
Yellowberry was founded by Megan Grassell when she was just a teenager. Frustrated by the lack of age-appropriate options for her sister, she set out to design better ones herself. What began as a DIY project turned into a full brand dedicated to creating simple, well-made bras and underwear for girls.
Key features:
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Cotton and stretch blends – Built for flexibility and movement without riding up
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Multiple silhouettes – Includes briefs, bikinis, hipsters, and seamless options
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Practical design – Smooth seams, no padding, and simplified cuts for everyday wear
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Extended youth sizing – XS to Plus 1 (roughly sizes 8/10 to 20)
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Girl-founded mission – Created by a teen for teens to offer better options for real bodies
3. Hanna Andersson: Best for Organic Cotton
Known for their Scandinavian-inspired quality, Hanna Andersson’s organic cotton underwear is a favorite among parents looking for natural, skin-safe basics. Their girls’ collection is made from 100% GOTS-certified organic cotton with no synthetics, no blends, which makes it an ideal choice for kids with sensitive skin, eczema, or anyone who prefers natural fibres.
Key features:
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100% organic cotton – Certified GOTS cotton with no added synthetics or spandex
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Simplified construction – Flat seams and wide waistbands reduce friction or discomfort
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Classic silhouettes – Available in full brief and hipster styles
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Playful designs – Includes licensed prints like Pokémon and Disney, plus seasonal colourways
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Children’s sizing – Typically runs from size 2 to 16, with detailed fit charts online
4. Thinx – Best Period Panties
Designed specifically for anyone who is menstruating, this line of reusable period panties from Thinx includes built-in absorbent layers and leak-resistant barriers that can replace or back up disposable products. The designs are sized for youthful bodies and aim to provide discreet coverage throughout the school day, during sports, or overnight.
Key features:
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High absorbency – Holds up to 12 regular tampons’ worth of flow
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Teen-specific sizing – Available in youth sizes S to XL (approx. ages 9–16)
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LeakSafe™ technology – Helps prevent leaks during movement or longer wear
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PFAS-free – Made without intentionally added harmful chemicals
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Reusable design – Machine washable and built for repeated use
5. Athleta Girl: Best For Active Girls
A branch of Gap Inc., Athleta Girl offers activewear and undergarments designed with movement in mind. Known for clean, functional design and the use of sustainable materials, their underwear collection includes bikinis and boyshorts made from cotton-modal blends that stay in place through school, sports, and everyday wear. They are also a Certified B Corp, reflecting its commitment to ethical production and social responsibility.
Key features:
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Stretchy cotton blend – Provides a soft, breathable, and lightweight feel for all-day comfort.
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Stay-put fit – Designed to remain in place during movement, reducing the need for adjustments.
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Multipack options – Available in 3-pack and 6-pack sets, offering practical choices for busy schedules.
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Inclusive sizing – Sizes range from XS (6) through XXL (16).
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Sustainable materials – Incorporates TENCEL™ Modal, a fiber harvested from responsibly managed forests
6. Fruit of the Loom: Best for Budget-Friendly Multipacks
Established in 1851, Fruit of the Loom is a longstanding brand known for providing affordable and reliable basics. Their range includes styles like briefs, bikinis, and hipsters, with multipacks typically offering 6 to 20 pairs per pack. Some sets feature all solid colors, while others mix prints and patterns, giving families variety without needing to shop pair by pair.
Key features:
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Material options – Includes 100% cotton and cotton blends for breathability
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Tag-free design – Made to reduce potential irritation
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Multipack availability – Offers packs ranging from 6 to 20 pieces
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Style variety – Includes briefs, bikinis, and hipsters in assorted colors and prints
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Size range – Covers sizes from 4 to 16
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Machine washable – Designed to withstand regular laundering
7. AIMER: Best for Viscose Blends
AIMER Junior is a sub-brand of Chinese intimates label AÍMER, offering a selection of tween and teen underwear made with soft viscose and modal blends. Known for smooth finishes and gentle structure, their designs include mid-rise briefs, boyshorts, and high-waist styles in a muted colour palette. Select styles also feature mesh panels or built-in absorbency, offering variety in both form and function.
Key features:
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Modal and viscose blends – Lightweight and soft-touch fabrics designed for movement
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Breathable mesh panels – Added airflow for comfort during active wear
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High-waist period styles – Select styles include built-in absorbency layers
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Tween and teen sizing – Typically fits ages 10 to 18
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Neutral colour palette – Subtle pastels and muted tones for a more mature aesthetic
Final Thoughts
There’s no single “best” young teen underwear, because no two girls are the same. Whether she’s starting out with her first set, needs something for sports, or prefers sensory-friendly seams, the right choice is the one that fits her body, her routine, and her personal preferences.
The best place to start? Let her try a few, listen to what she likes, and build from there.
If she’s also beginning to explore bras, you might find our guide on where to buy teen bras helpful. And for younger girls, this article on choosing the right training bra for a 10 year old is a great place to start.
FAQs
What underwear should teen girls wear?
Teen girls should wear underwear that feels comfortable, fits well, and offers enough coverage for their activity level. Styles like briefs, bikinis, and boyshorts made from soft, breathable fabrics are all good options, especially those with flat seams and tag-free construction.
What size underwear should a 14-year-old wear?
Sizing varies by brand, so it’s best to measure her waist and hips and compare them to the brand’s size chart. Most 14-year-olds fall somewhere between youth size 14–16 or adult XS–S, depending on body type and fit preferences.
What underwear do gynecologists recommend?
Many gynecologists recommend underwear made from breathable, moisture-wicking fabrics like cotton or modal to help prevent irritation. Avoid overly tight fits or synthetic materials that can trap heat and moisture, especially during long wear or physical activity.
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