Women's Thong Underwear | Best Seamless, Cotton & Lace Thong Panties | Thirdlove
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Thong Underwear
Minimal coverage, no panty lines. Our thong underwear stays invisible under clothes and has a comfortable fit.
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$20
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24/7® Classic High Waist Thong
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24/7® Classic High Waist Thong
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- Featured in Glamour
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24/7® ClassicHigh Waist Thong - 3 Pack
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Zero Edge™No-Show Thong - 3 Pack
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Seamless Cloud CottonThong - 2 Pack
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All Day LaceAll Day Lace Thong 2 Pack
$44
$36
- Ultra Soft
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24/7® ClassicHigh Waist Thong - 3 Pack
$39
$19
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24/7® ClassicHigh Waist Thong - 3 Pack
$39
$25
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Seamless Cloud CottonThong - 2 Pack
$26
$13
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$39
$19
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24/7® ClassicHigh Waist Thong - 3 Pack
$39
$19
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$48
$35
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$20
$10
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$20
$10
- Final Sale
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$20
- 3 for $49
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$20
- 3 for $49
\ \
$20
$10
- Final Sale
\ \
$22
- Ultra Light & Breathable
- 3 for $49
\ \
$20
- 3 for $49
\ \
$20
- 3 for $49
\ \
$20
- Invisible Under Clothes
- 3 for $49
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$20
- Invisible Under Clothes
- 3 for $49
Thong underwear gives you minimal back coverage, so you get no visible panty lines under fitted clothes and a comfortable fit all day. Our thongs for women come in sizes XS–3X.
Here, you'll learn how each style and fabric feels, which rise to choose, and when to wear a thong. We'll also cover what makes a thong comfortable, how it should fit, and which colors and packs to stock up on.
What Is Thong Underwear Designed to Do?
Thong underwear is designed to remove visible panty lines by swapping full back coverage for a narrow strip of fabric. With less fabric at the back, there's no edge to show through leggings, dresses, or trousers. That's why it's the go-to pick for fitted outfits.
A good thong also has to feel good. Ours use fabrics chosen for stretch and breathability, so you get a smooth line without giving up comfort.
Which Type of Thong Underwear Should You Choose?
Choose seamless thongs for leggings, cotton for breathable basics, lace for detail, unlined for a sheer feel, or sculpt for smoothing. Every style helps reduce panty lines, so the real difference is fabric and feel.
| Type | Best For | Feel |
|---|---|---|
| Seamless | Everyday wear, workouts, leggings | Buttery soft with no stitching |
| Cotton | Everyday wear, hot days, sensitive skin | Soft and breathable |
| Lace | Everyday outfits, dressing up | Lightweight with detailed lace |
| Unlined | A sheer, stylish look | Silky and breezy |
| Sculpt | Smoothing under fitted clothes | High-rise with a contouring waistline |
Seamless Thongs
Our seamless thongs are made with a buttery soft material free of any stitching. They're great for everyday wear and are the best thongs for working out. They disappear under your go-to leggings, which makes them an easy no-show thong pick.
Cotton Thongs
If you love cotton underwear but want a minimal back, cotton thongs are your match. They're made of durable cotton that won't fray or tear in the wash or while you wear them. The fabric is soft against your skin and very breathable.
For cotton with a smooth finish, try the Seamless Stretch Cotton Thong or the Seamless Cloud Cotton Thong.
Lace Thongs
Lace thongs are lightweight staples for everyday outfits. The detailed lace keeps its shape, so they won't ride up or twist up. They come in seasonal colors, and the All Day Lace Thong is an easy place to start.
Unlined Thongs
Unlined thongs are one of our most stylish options. They're made of sheer, silky, durable fabrics that emulate lace patterns. You get a breezy feel and fine detail with no panty lines.
Sculpt Thongs
A sculpt thong pairs a high-rise waist with a minimal back. The contouring waistline smooths your tummy, so fitted dresses and trousers lie flat.
Should You Choose a High-Waisted, Mid-Rise, or Low-Rise Thong?
Choose the rise that matches where your pants or skirt sits on your waist. The goal is a waistband that stays hidden, unless you want it to show.
- High-waisted thong: Sits at your natural waist and elongates your legs. Let it peek above your waistband on purpose for a fun look.
- Mid-rise thong: Our barely-there classic feels airy and comfy all day. It works with skirts, jeans, and low-waist bottoms.
- Low-rise thong: Sits lowest on your hips, so it stays out of sight under low-waist bottoms.
If you want a high-waisted thong for daily wear, start with the 24/7® Classic High Waist Thong.
When Should You Wear Thong Underwear?
Wear thong underwear whenever your outfit is fitted enough to show panty lines. That includes leggings, yoga pants, bodycon dresses, and tight skirts, plus your post-gym errands. Thongs are also a smart pick on hot summer days because they're more breathable than other underwear styles.
Use this quick guide to match your outfit to a thong:
- Leggings and yoga pants: Go seamless, since there's no stitching to show through.
- Bodycon dresses: Reach for a sculpt thong to smooth your tummy with a minimal back.
- Jeans and skirts: Pick a mid-rise thong that stays below your waistband.
- Hot summer days: Choose cotton thongs for an airy, lightweight feel.
- Nights out: Try lace thongs when you want to glam up your look.
Are Thongs Comfortable to Wear Every Day?
Yes, thongs are comfortable to wear every day when the fit and fabric are right. The most comfortable thongs get a few small details right.
- Soft waistband: Look for one that lies flat without digging in or rolling down.
- Cotton gusset: Adds a breathable layer where you need it most.
- Gentle fabric: Cotton is your best bet if you have sensitive skin.
- Time to adjust: New to thongs? Give yourself a few wears to get used to the feel.
How Should Thong Underwear Fit?
Thong underwear should fit snug but not tight. The back string should sit flat without digging in, and the waistband should stay put without rolling.
- Too small: Digging at your hips or irritation along the string means you should size up.
- Too big: Bunching fabric or a loose waistband means you should size down.
Our women's thong underwear comes in sizes XS–3X. If you're between sizes, check the size chart or chat with a fit stylist.
What Colors and Multipacks Do Thirdlove Thongs Come In?
Thirdlove thongs come in nudes for a wide range of skin tones, plus taupes, black, soft pink, mocha, and sienna. Seasonal colors like daydream and eucalyptus green add something fresh to your drawer. Nudes blend under any outfit, while brights give you a little mood boost.
To restock fast, grab a 3-pack or 2-pack of thong panties in your favorite shades. You can also build a bundle with our underwear offer of 3 for $49. Pick your style, choose your colors, and shop now.
Frequently Asked Questions
What's the difference between a thong and a T-string?
A T-string has a thinner, string-style back and sides, while a classic thong uses a slightly wider strip of fabric at the back. If you want the most minimal coverage, try the 24/7® Classic T-String Thong.
How should you wash thong underwear?
Machine wash on a gentle cycle in a laundry bag with mild detergent, or hand wash lace, and skip bleach and fabric softener. Air dry instead of using high heat so the stretch lasts longer.
Can you wear thong underwear to work out?
Yes, you can work out in a thong when you choose a seamless or moisture-wicking style with a cotton gusset. Skip lace for high-sweat sessions and save it for lower-key days.
How many thongs should you own?
Aim for enough thongs to get you through a week of wear, plus a few extra fabrics and colors for different outfits. Multipacks make restocking easy, so you can grab several favorites at once.
Are thongs good for sensitive skin?
Yes, thongs can work for sensitive skin when you choose breathable cotton with a cotton gusset and a fit that doesn't rub. Change out of damp underwear quickly, especially after a workout or a hot day.
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