NEW DROP

6 Pack Tencel™ Invisible Underwear

Name: 6 Pack Tencel™ Invisible Underwear
Brand: STRINGYS
SKU: 190410SSXXS6
Price: 99.0 USD
Availability: InStock
Rating: 4.8 (236 reviews)

Size

Color

Size

Color

Free shipping on all orders over $75 in the US

This exact fit is patented. No copies. No dupes.

Details

So good you need 6.

Meet our sporty side.
Crafted from our custom-developed TENCEL™ fabric, with an ultra-soft feel and a flattering new silhouette designed to look as good as it feels.
Versatile, and effortlessly refined, sporty transitions seamlessly from movement to the everyday.

Zero seams and raw-cut edges keep them invisible even under your most fitted leggings.

Materials & Care

For best results: Machine wash cool with like colors — in your mesh bag if you’ve got one — and lay flat or hang to dry. TENCEL™ dries fast, so skip the dryer.

TENCEL™ Lyocell is a plant-based fiber spun from sustainably sourced eucalyptus. It wicks moisture, breathes better than cotton, and stays soft wash after wash. TENCEL™ is a trademark of Lenzing AG.

Our magic straps are made from an advanced material that is durable, recyclable and biodegradable in 3–5 years. The composition is 100% latex-free and has a soft soothing feel on the skin.

Shipping & Returns

Free shipping on all U.S. orders $75+

New drop alert: Sporty just dropped and the warehouse is doing cardio. Please allow 7–10 business days for us to pack your order with care and get them out ASAP.

Stringys pieces are intimate (and meant to stay that way), so we cannot accept returns.

Questions or feedback? We’re here for you!

Reach out anytime at hey@stringys.com

New drop Made with TENCEL™

New shape. New material. Still invisible.

Disappears under Leggings. Meet your leggings. New best friend.

Fabric TENCEL™ Lyocell Spun from eucalyptus. High performance. Skin friendly. Moisture wicking.

Breathability High Lightweight TENCEL™ keeps air moving, so you stay cool and dry mid-workout.

Coverage + More More coverage than the original, so you’re covered in every position.

Occasion PilatesGymRunningHot yogaErrandsCouch

#SPORTYSTRINGYS

Move however you move

The stay-put test

One full session.
Zero adjustments.

0adjustments

0reps & counting

We wore Sporty Stringys through bridges, squats, burpees and the walk home — and counted every tug, pull, or reposition.

Glute bridges3 × 15
0✓
Goblet squats4 × 12
0✓
Stairmaster5 min
0✓
Burpees20
0✓
Walk home1.5 mi
0✓

SPOT THE DIFFERENCE.

Left: your “seamless” pair. Right: Sporty by Stringys. Same leggings, same light, same squat-ready fit — and nothing showing through.

FROM SHARK TANK TO YOUR TOP DRAWER

What started as an idea for underwear you can't see turned into a nationwide obsession. Featured on Shark Tank and worn by women everywhere — Stringys is the new standard for invisible comfort.

Shark_tank_banner_c3c80db9-dfe0-4619-8865-38a6df7d9750

Overall rating: 4.8474574 / 5 from 236 reviews.

AI Generated Review Summary

Summary topics

Review topics: [].

Review highlights

Reviews

Perfect for Carnival costume

"This was the perfect underwear to wear under my costume..I hate thongs but this is unbelievably comfortable like u don’t feel it at alllllll.. it’s amazing and a must have !!"

— Sasha M. (5/5)

sizing is off and not-returnable, think twice

"I went with my usual sizing (I wear a size 4-6/S) and also purchased a medium as an alternative size just in case. They were both so small that I could barely put them on. It was for a wedding, and there was no way to wear these without seeing major lines. They have zero returns, so I'd think twice about purchasing these, and I definitely won't be a customer. It's just another PE company that isn't making a good product."

— Claire (1/5)

Life changing

"These thongs are magic. I wore them with crotchet pants that have tons of holes everywhere at a music festival (they are supposed to be a swimsuit cover up) and people were asking if I was wearing underwear because they couldn’t tell. Magical!"

— Sierra S. (5/5)

Love these!

"I love these! I live in Houston where is crazy for in the summer I'm in my 40s and teach Barre and yoga and workout. These are perfect for the hot weather to wear under workout clothes but also under cute outfits where I don't want lines to show. They are very comfortable"

— Ruben A. (5/5)

Nude Underwear

"Super cute & comfy! Love the nude color aswell very close to my skin tone"

— Jaquoya C. (5/5)

Truly Invisible…literally forget they are on

"In all honesty, I hate underwear (the lines, the feeling etc)…don’t even wear them usually! Gave these a shot and yep…so comfortable and invisible you forget you have them on (and sadly have peed in them…twice). If Stringy’s is reading and wants to send me two new pairs, that would be great (I promise I’ll get it right next time). I seriously love them!!!"

— Heather L. (5/5)

Bought size S

"When I opened I saw immediately too small the size S 🙁 so definitely need sizing up ../ And they are not accepting exchange ."

— Bogi T. (3/5)

OMG

"I have a few beautiful crocheted outfits that have been sitting in my closet because I could never figure out the right undergarments to wear underneath them. These completely solve the problem! They are super comfortable and truly invisible under my outfits. I can finally wear pieces I've been avoiding for so long. Such a great find – I absolutely love them!"

— Holly W. (5/5)

Horrible!!! Overpriced!!!! Joke!!!!Without the option

"Horrible!!! Overpriced!!!! Joke!!!!Without the option to return. So disappointed"

— Inna f. (1/5)

Just buy it

"At first I was skeptical thinking that they would be uncomfortable, the straps would move and it would feel hot because of the material especially during summer. Boy was I wrong! These are the best undies ever and yes they are a bit pricey but they are worth it. My only regret is not buying them sooner. It really does the job. No panty lines, doesn’t move, very comfortable. Truly a great staple to have in your closet. I did size up to small because I wanted a bit more coverage for my lady parts. Wish they would bring back the color black!!!!"

— Kathleen S. (5/5)

Stringys