Made with super stretchy fabric and smooth bonded seams for a second-skin fit
Not treated with PFAS
Thinnest and driest gusset technology
Machine washable
Slip into any outfit without rethinking your underwear.
The just-cheeky-enough, super flattering style for any occasion. Put on light-colored pants without stopping to rethink your underwear. The patented ultra-thin absorbent gusset means protection is built in, not built up. This is the pair you reach for on busy days, when you want everything to stay exactly where it should. With barely-there nude shades and a second-skin fit so smooth you'll forget you're wearing anything, this one’s an instant go-to.
If you're looking for more gusset coverage toward the front, try our brief instead.
Fabric
Sleek, super-stretchy body fabric gives you all the freedom with none of the panty lines. Made with 4-way stretch fabric and luxe bonded seams that move with you. Second-skin fit glides so smoothly, you'll forget you're wearing anything.
Seamless body fabric is ultra-stretchy and hugs the body. It's great for those who want no VPL under even the tightest-fitting clothing, or for those who prefer stretch that accommodates body changes. If you're between sizes, consider sizing down for the best fit.
Seamless
Runs true to size
Runs small
Runs big
Care Instructions
After use, rinse your Saalt Wear leakproof underwear in cold water to help avoid staining. Then, hand wash or machine wash on cold, preferably in a Saalt Mesh Laundry Bag intended for delicates. You can use detergent but pass on the fabric softener, bleach, or iron to protect the tech. Proudly hang dry—energy efficient and free. We recommend avoiding putting Saalt Wear in the dryer, as high temperatures can degrade the elastics and fabric over time.
90-Day Saalt Bliss Guarantee
Love it or we’ll make it right. Love your Saalt products, or you have 90 days to return or exchange them. Why? We know that learning to use reusables can take time, but we're here to help and cheer you to Saalt bliss. Your Saalt(isfaction) guaranteed.
Please note: If you’re trying Saalt Wear for the first time, we recommend starting with one pair before opening the rest. Unopened pairs are eligible for a refund, while the first pair you try can be exchanged for store credit if needed.
Bust Measurement: Wearing a bra with no padding (preferably with an underwire to give the needed lift), measure around the fullest part of your bust. Round the measurement to the nearest inch.
Band Measurement: Measure around the top of your rib cage where the bottom band of the bra will rest. Round the measurement to the nearest inch. Not sure about your cup size? Subtract your band measurement from your bust measurement. A difference of 1"=A, 2"=B, 3"=C, 4"=D, 5"=DD.
hanky panky+ [powered by Saalt] Size Chart
Waist (in)
Hips (in)
Dress Size (US)
XS
24 - 25"
34 - 35"
0 - 2
S
26 - 27"
36 - 37"
4 - 6
M
28 - 29"
38 - 39"
8 - 10
L
30 - 33"
40 - 43"
12 - 14
XL
34 - 37"
44 - 46"
14 - 16
One Size
36 - 45"
4-14
Measured at your belly button.
Measured around the widest part of your hips.
Super Absorbency
Holds up to:
8+ tampons
6+ pads
Best for:
Heaviest flow days and overnight
Bladder leaks
Postpartum wear
Heavy Absorbency
Holds up to:
4 tampons
3 pads
Best for:
Heavy flow days and overnight
Postpartum wear
Bladder leaks
Regular Absorbency
Holds up to:
3 tampons
2 pads
Best for:
Sweat and discharge
Worry-free backup to a cup, disc or tampon
Regular period flow
Light bladder leaks
Light Absorbency
Holds up to:
2+ light tampons
1+ liner
Best for:
Sweat and discharge
Worry-free backup to a cup, disc or tampon
Light flow days and spotting
Pantyliner replacement
9/10 People Never Go Back
Jessica J
I bought myself a few pairs and I'm not kidding when I say they are so comfortable and fit perfect, I would wear them every single day!!! I feel so good about replacing all the pantyliners I use when I am on my period. Thank you Saalt!
Euna
I wanted to avoid panty lines and the bulk of pads while still wearing leggings at the gym. My solution was Saalt's seamless underwear. I was skeptical at first, but honestly they're very thin and comfortable making it the perfect thing to wear under leggings.
Michelle C.
These are great! The period panties I've ordered from other brands feel like thin diapers mixed with granny panties. These are cute, they work, and I'm definitely going to buy more!
1 / of3
Premium Design. Comfortable Fit.
Welcome to the thinnest, driest, and most comfortable leakproof underwear you'll ever wear.
Patented gusset
technology
Reusable and replaces hundreds of pads and liners
Worry-free backup to a tampon, cup or disc
Not treated with PFAS
Your one-stop (sustainable) shop for all leaks.
Leakproof period underwear designed to withstand laughing with your best friend, the sweat of spin class, vivacious sneezes, and periods. It does it all, just like you.
Take good care of Saalt Wear leakproof underwear and it will take great care of you.
Rinse in cold water
Machine wash cold
Proudly hang dry
Do not use fabric softener or bleach to protect the tech | Do not iron
Do good every wear.
Saalt is a B Corp. That means we use business as a force for good and give 1% of revenue to donate period care to women and girls in need.
Customer Reviews
Overall rating: 4.2 / 5 from 329 reviews.
I love these period underwear! They look and feel like a normal pair of underwear, which is what I was looking for, so I love them.
I was tired of my period keeping me from the gym so I bought these to wear instead of my normal "granny's". These are EXCELLENT and I want more. I actually don't feel like I'm wearing a diaper but I'm protected. Freaking awesome.
Store owner replied:
It is so wonderful to hear that our Leakproof Seamless Bikini is helping you get back to the gym with confidence! We love that they provide the protection you need without the bulky feel of a diaper. We are thrilled to be your new go-to for active days. Thank you for sharing your experience! ❤️
I put all my friends onto these! I hate pads because they feel like wearing a diaper. With these it feels dry just like wearing normal underwear.
These are perfect. They are super absorbent, seamless, comfortable and flattering. I can wear them under yoga pants or pretty much anything and not feel like I have huge panty lines or like I'm wearing a diaper.
Store owner replied:
Aliza, this makes our day. We are thrilled the Leakproof Seamless Bikini gives you serious absorbency with a smooth, no-lines fit under your yoga pants, without any bulky feel.
Thanks for sharing your experience. Enjoy the comfort and confidence, every wear. 😊
Love it! Comfortable, works great, and looks nice, too.
I'm so glad I purchased these! Super comfy fit, and it keeps me totally dry! I wore this pair on a heavier day and I am amazed at how well it kept me dry! I also love how the seamless option doesn't show underwear lines through my pants.
Store owner replied:
Taylor, this made our day. So glad the Leakproof Seamless Bikini kept you comfortably dry on a heavier day and stayed invisible under your pants, that seamless finish really delivers. 🤩
Thank you for the 5-star love and for sharing your experience. We are thrilled it is a new go-to for you.
I got the seamless regular underwear and I love!! They are actually seamless and keep me feeling dry!
Wow these are truly amazing. I slept so comfortably woth zero worries of leaking or overflowing. The fabric is soft, stretchy and hugs me in the most secure way. Im very happy with my purchase and can’t wait to buy more.
Wow these are truly amazing. I slept so comfortably woth zero worries of leaking or overflowing. The fabric is soft, stretchy and hugs me in the most secure way. Im very happy with my purchase and can't wait to buy more.
Store owner replied:
Vanity, your review made our day. We are thrilled the Leakproof Seamless Bikini kept you comfy overnight with no leaks, and that the soft, stretchy fit feels secure. Thank you for sharing such thoughtful feedback. We cannot wait to help you add more pairs when you are ready. 🤩❤️
These are great. I tried different styles and have been pleased with all of them. I dribble when I sneeze so these are wonderful for everyday confidence.
Store owner replied:
This makes our day. Thank you for the glowing 5-star review on the Leakproof Seamless Bikini. Quick-drying, smooth, and truly seamless is exactly what we designed it to be. 🤩
So glad it is your best period underwear yet. We are here if you ever want tips on care or absorbency. Enjoy the comfy, worry-free wear. ⭐
Comfortable, not bulky, no smells, dries quickly, great back up. A bit pricey but ultimately worth it.
I've been using Saalt underwear for years. My initial pairs finally started to show signs of wear after 2 years of consistent use. I decided to try the seamless bikini this time. I ordered 3 pairs. I loved them so much that I ordered 6 more pairs!! I had been wearing them during my 12 hour shifts at work. They keep me feeling dry through my whole shift. Because they are truly seamless and so comfortable, I now wear them all the time. I hope they last me years like my initial pairs did! I machine wash them and hang them to dry.
Store owner replied:
Katie, thank you for the amazing review and for being with Saalt for years. Hearing that your first pairs lasted about two years and that the Leakproof Seamless Bikini keeps you dry and comfortable through 12 hour shifts is the kind of feedback we love. Ordering nine pairs is the best compliment 🤩.
Your care routine is spot on. For longest life, wash cold, skip fabric softeners and bleach, use a delicates bag if possible, and always hang dry away from direct heat. With that care, you can expect lasting performance. Wishing you many comfy, seam-free days ahead!
Best pair if period underwear I had in my life, you feel like you are wearing regular underwear. No marks, super comfy, aoft fabric. Im in love. Fits perfectly. Usually i am a M but in period i always take 1 size up. Large fits perfect i am a size 40 EUR
Store owner replied:
Maya, thank you for the amazing review and for sharing your sizing tip. We are thrilled that the Leakproof Seamless Bikini feels like regular underwear for you, with no lines and that silky soft fabric. 🤩
It is great to hear that a Large fits comfortably during your period at EU size 40. Insights like yours help others choose their best fit with confidence. Enjoy the comfy days ahead. ❤️
These are so comfortable and discreet under leggings or other tight pants! I was dealing with unexpected sudden heavy bleeding due to a uterine fibroid and got sick of ruining all my underwear, so i splurged on a few pairs of Saalt panties. So far I love them!
Store owner replied:
Caroline, thank you for sharing this. We are so glad the Leakproof Seamless Bikini feels comfortable and stays invisible under leggings. ❤️
It sounds like you have been dealing with a lot. If you ever want extra peace of mind on your heaviest days, our Super absorbency option offers more protection for overnight or sudden heavy flow while keeping the same smooth fit. We appreciate you trusting Saalt and are happy these are helping you feel covered and confident. 🎉
Color is light, but the coverage is fantastic. Seamless so I can even wear leggings with them.
I love these undies - much less noticeable and overall comfier than a pad. With a moderate flow, I've never had any leaks. They don't show lines under my jeans or work pants. I've had mine for over a year, always wash & dry em, and they've held up great. I'm usually a size M (~6 US pants) & the M fits perfectly, they're nice a stretchy, don't dig in at all.
Store owner replied:
Alaina, thank you for the thoughtful review of our Leakproof Seamless Bikini. We are thrilled it stays invisible under jeans and work pants, feels comfier than a pad, and has kept you leak-free on moderate flow days. Love hearing your pair has held up after a year of regular wash and dry.
Your fit note on size M (stretchy, no digging) is super helpful for other shoppers. We appreciate you being part of the Saalt community. ❤️
This would be my go to style to order. They're comfy and the seamless style doesn't look bulky under clothes. The Saalt team also went above & beyond to help with a separate issue I had on the order, so I appreciate great customer service!
Store owner replied:
Jessica, thank you so much for sharing your experience! We're thrilled to hear that the Leakproof Seamless Bikini is your go-to style and that you find it both comfy and discreet under clothes. It means a lot to us that you noticed our team's efforts to help with your order-we truly appreciate your kind words about our customer service. 😊
If you ever need anything else, we're always here to help. Enjoy your Saalt undies!
90-Day Saalt Bliss Guarantee
Love it or we’ll make it right. Love your Saalt products, or you have 90 days to return or exchange them. Why? We know that learning to use reusables can take time, but we're here to help and cheer you to Saalt bliss. Your Saalt(isfaction) guaranteed.
Do you have a period? Great, we're here to make it better (starting with 10% off your first order). 😉
Subscribe to receive all you need to know about the period flow, pointers, and perks that come as often as your period does.
