Leak proof underwear for girls
I started my period career in the age of pads and tampons. I think the pad wings was the “big” invention of my time. For a very long time nothing really changed or happened in the industry. The tampons didn’t even have the “twist and open” thing. This means I’ve spent I don’t know how many hours trying to get the plastic of the tampons. It also means a crap load of pads and tampons building mountains of waste.
Today we have a lot of different, and more sustainable, options. We got the menstrual cups and leak proof and washable underwear. And there are pads made of fabric and degradable materials. They are all good options. But I prefer the underwear. They’re convenient, sustainable and cute. And we still (usually) wear underwear anyway.
Some starting tips
Leak proof underwear can be used for all kinds of fluids. Even if some brands are marketed as period underwear, they work just as well for pee and sweat. There are even leak proof swimwear available nowadays.
If you’re brand spanking new to period underwear there are a few things to know and consider. There are basically 3 absorbency levels, light (1-2 tampons), moderate (2-3 tampons) and heavy (3-4 tampons).

Depending on your flow and time in cycle you can choose different underwear. You will want something to sleep in and something different during the days. If you want to learn more about how leak proof panties work, keep reading and look for the headline “How does leak proof underwear for girls work”.
Where to find leak proof underwear for girls
I got 2 favorite brands, RED by Modibodi and Thinx (BTWN). They both offer lots of styles, patterns and colors, but they basically works the same. I’ve gathered some of their best sellers to inspire you and help you get started.
RED by Modibodi
RED is a part of Modibodi but designs exclusively for girls and young women. That means top quality and fresh looks all around. You can learn more about their work with social impact and follow their blog and podcast on the website.
At the moment they have 2 styles to choose from, hipster bikini and hipster boyshort. They both come in a couple of different colors. You can choose either moderate/heavy bleeding or 24h absorbency.
Check out all leak proof underwear from Modibodi.com →
Thinx (BTWN)
Thinx (BTWN) is one of the leading brands in period underwear for tweens and teens. Their underwear styles are designed for the younger body. They’re made of breathable and comfortable cotton. And remember, you can always use leak proof underwear as backup and use tampons and pads as well if you need to. You’ll still use so many fewer and will feel so much more safe.
If you’re hesitant why not just give it a try? You can try Thinx (BTWN) for 60 days and if they don’t help you period better they will give you a refund — no questions asked!
There are 4 different styles to choose from and a range of colors and patterns. Basic black or popping colors, your choice.
Check out all underwear from shethinx.com →
Save money with bundle packs
If you’re a first timer you’re probably not ready to start off with a bundle pack even if that would save you a lot of money. You probably want to start with a pair or two to test the waters.
- Modibodi has great Bundle packs.
- Thinx has a nice Starter Kit with 3 pairs and a 60 day trial, and also
- Buy 7 pairs and get a 20% discount
If you, like a lot of us, become a believer you should definitely go for bundle packs after that.
How does leak proof underwear for girls work?
A lot of first time users are worried about smell. I mean, can I wear the same period underwear all day without them starting to ooze? The answer is yes. As long as you got the right absorbency level you can wear them all day long and there’s no need to worry about smelling. This is how it works.
There are three layers. The top layer, is the one closest to your skin. It wicks away any kind of moisture super quick. This keeps you dry and stops bacteria from growing, thus preventing smells. The middle layer absorbs the fluids and locks it away nice and safely. The final bottom layer is actually waterproof. It’s you final defence against the leaks. You can’t be any safer.
This might sound like a lot of layers and maybe not the most comfortable solution. Wrong! The underwear are super slim, only 3 mm thick. Amazing, right? They are so so comfy and no one will ever know you’re on your period from just looking at you in your underwear. Technology at its best.
Why leak proof underwear for girls are the best
Still not sure that this is something for you? Here are a short summary of all the benefits that I think tips the scale.
- Look & feel great – When you look great, you feel great. And no one can ever tell what’s going on down below.
- Great technology – leak proof underwear helps you to forget you’re even on your period.
- Save the environment – by using washable underwear instead of tampons and pads you help save the planet by producing less waste and doing less damage. Learn more about your social impact over here.
- Save money – they might seem a bit expensive at first, but in the long run you will definitely save some dineros.
If you have any questions, please leave a comment down below.
Thank you for this informative article. As a dad of 1 daughter, I try to understand what she may need as she gets older. She hasn’t started periods yet but when she does I want to be prepared so this kind of advice is great.
I shall save this article to go over with her when the time comes. Thank you
Thanks for being a caring dad/parent. You help make the world a better place.
Wow, this is amazing! So, you can really wear them all day long and there will be no leaks? That takes away a lot of worries about having leaks during your period while you’re at work or driving long distances. When you wash the briefs, do you have to drain the pad that holds the fluids first or you just throw it into the washing machine as it is? How long have they been on the market?
Isn’t it. You can wear them all day long and don’t have to think about it. You should just rinse them in cold water before putting them in the washer. I actually don’t know how long period proof underwear have been on the market for exactly but maybe since 2015 or something.
I am not a lady but I must say this is a very nice article and I know it would be of great help to the public as it has been of help to me.although Christmas is around the corner I would still get this one for my girlfriend as I think she going to like it for a Christmas present.
I’m sure she would appreciate it. =)
Thanks very much for this great post, This technological change has really saved our sisters from hardships they find during their period, In Africa, we still have a big problem because some girls even have no access to pads. So when read about such kind of advancement it gives hope. I justed shared this post on social media to create awareness. Thanks.
Thank you for sharing. Both your insights and the post. I have to admit I haven’t thought too much about people who can’t afford this. Maybe there are cheaper options I can help spreading. Maybe even free ones. We have that in Sweden.
Technology has gone crazy again. I am really amazed at technology touching the various parts of life including wearables, dog stuffs etc, I’m blown away.
And now, leak proof underwears for girls. This is my first time and though I am a guy, I think it’s my business because I was really curious when I saw this heading and my lady would be excited about this too. I guess the old way of handling menstrual cycle will soon be over and the better way which is with the leak proof underwears will take over.
Thanks for sharing, regards.
Nice to see a man caring about his ladies business. Thanks for sharing your thoughts. =)