How to Choose Menstrual Underwear for Every Day of Your Cycle
You know that feeling. The one where you check your chair every time you stand up. It is time to stop worrying. Period underwear is here to change your life. In this guide, you will learn how to choose menstrual underwear that actually works for you. No leaks. No stress. Just you being you. Let's find your new favorite pair.
Choosing the right protection is about your comfort. You deserve to feel dry and safe. Whether you are at work, at the gym, or sleeping, your period should not hold you back. We created this guide to make the switch easy. You will learn about technology, absorbency, and how to find your perfect fit.
What Are Menstrual Underwear?
They look like your favorite panties. They feel like them too. But they have a secret. They absorb your period so you do not have to use pads or tampons. Reusable period underwear is better for your body and the planet. It is the simple switch you have been waiting for. These are not bulky diapers. They are smart clothes for smart women.
Many women use them alone. Others use them as a backup for a menstrual cup. If you are curious about cups, you can see how the LUNACUP works with your body. But for many, LUNA+ panties are all they need. They are designed to be your hero every single month.
How Do LUNA+ Menstrual Underwear Work?
We spent years making the perfect pair. We wanted something thin but powerful. The result is our LUNA+ collection. It uses 4th Gen bonding technology. This means no thick seams and no bulk. Just smooth, invisible protection.
Triple-Layer Technology
Every pair of LUNA+ has three special layers. They work together to keep you safe. First, there is the Dry-Touch layer. It pulls liquid away from your skin instantly. You stay dry and fresh. Second is the absorbent core. This layer is thin as a credit card but holds a lot of liquid. Third is the leak-proof barrier. This layer ensures it won't leak. Not even sideways.
Our materials are antibacterial without using silver. This is better for your sensitive areas. We use Silk Touch material. It is soft against your skin and stays that way. These panties are built to last 2 to 3 years with proper care.
Absorbency Levels
Not every day of your period is the same. Your underwear should match your flow. We measure absorbency in milliliters. Most of our LUNA+ styles have a 20ml+ capacity. That is more than a standard night pad. Some styles hold even more for your heaviest days.
- Light Flow: Perfect for the start or end of your cycle.
- Medium Flow: Great for everyday wear during your period.
- Heavy Flow: Maximum protection for heavy days or overnight.
How to Choose the Right Pair
Finding the right pair is easy when you know what to look for. Think about your routine. Think about your body. You are the hero here. The underwear is just your sidekick. Here is how to make the best choice for your needs.
By Flow Level
Check your current habits. How often do you change your pad or tampon? If you change every 2-3 hours, you have a heavy flow. You should choose our high-absorbency LUNA+ models. If you only change a few times a day, medium absorbency is perfect. Always have a mix of styles in your drawer. This way, you are ready for any day of the month.
If you are worried about leaks while swimming, we have a solution for that too. Our LUNA Swimwear handles your cycle while you enjoy the water. It uses the same great technology to keep you safe in the pool or at the beach.
By Activity
What does your day look like? If you are sitting in an office, comfort is key. Look for our seamless styles. They disappear under leggings or tight skirts. If you are active, you need a pair that stays in place. Our sportier cuts are designed to move with you. They won't shift or bunch up while you run or dance.
For sleeping, choose a high-waisted style. These offer more coverage in the back. This is important when you are lying down. You can sleep through the night without checking the sheets in the morning. Explore the full range of LUNA+ to see all the different cuts.
By Size
Size matters for protection. If the leg holes are too loose, you might leak. If they are too tight, you will be uncomfortable. Do not just guess your size. Use a measuring tape. Measure your hips at the widest point. Compare this to our size chart. If you are between sizes, we usually suggest the larger one for comfort. Remember, we offer a 40-day try guarantee. If the fit is not right, we will help you out. No questions asked.
LUNA+ vs Disposables — Cost Comparison Table
Many women worry about the price of menstrual panties. But think about the long term. You buy pads every single month. That money disappears. With our Fair Price strategy, we make it affordable. We do not spend money on big ads. We gave the ad money to you. This means you get premium quality for a fair price.
| Feature | LUNA+ Underwear | Disposable Pads |
|---|---|---|
| Leak Protection | Won't leak. Not even sideways. | Can shift and leak easily. |
| Comfort | Silk Touch material feels like skin. | Plastic and sticky feeling. |
| Cost (Over 2 Years) | One-time Fair Price. | Over $300 spent on disposables. |
| Waste | Zero waste for 2-3 years. | Over 500 pads in the trash. |
| Odor Control | Antibacterial and breathable. | Can trap heat and smells. |
When you choose our Smart Choice: 3+1 FREE promotion, the value is even better. You get enough pairs for your whole cycle and save money at the same time. It is the smartest way to shop for reusable period underwear.
Care & Washing Guide
Taking care of your LUNA+ is simple. You do not need special chemicals. Just follow these easy steps to keep them working for years. Proper care ensures the Silk Touch material stays soft and the absorbent core stays powerful.
- Rinse: After wearing, rinse them in cold water until the water runs clear.
- Wash: Put them in the washing machine. Use a cold or 30-degree cycle. Do not use fabric softener. Softener can coat the fibers and stop them from absorbing.
- Dry: Hang them up to air dry. Do not use a tumble dryer or put them on a hot radiator. Heat can damage the leak-proof layer.
That is it. No fuss. No stress. They will be ready for your next cycle. Because they last so long, you are doing something great for yourself and the earth. If you use a cup like the LUNACUP, you can wash them both together. It is all part of a simple, modern routine.
We believe in our products. That is why we offer a 40-day try guarantee. You can test them at home. If you do not love them, we will take them back. We want you to be 100% happy with your choice. This is the LunaCare way.
FAQ
How many pairs do I need? Most women find that 4 to 6 pairs is the perfect amount. This allows you to wear one, have one in the wash, and one drying. Our 3+1 FREE deal is a great way to start your collection.
Can I wear them all day? Yes. Most of our LUNA+ styles can be worn for up to 12 hours. If you have a very heavy flow, you might want to change them sooner. You will quickly learn what works for your body.
Do they smell? No. We use antibacterial materials that prevent odor. Because the fabric is breathable, you stay fresh all day long. This is a big upgrade from plastic pads.
Are they bulky under clothes? Not at all. Our 4th Gen bonding makes them thin as a credit card. You can even wear them under tight gym leggings without anyone knowing.
Can I use them for sports? Absolutely. They are designed to stay in place. Whether you are running or doing yoga, they move with you. They are much more secure than a pad that might shift.
Do I need to use a pad with them? No. LUNA+ is designed to replace pads and tampons entirely. However, some women like to use them as a backup for a cup on their heaviest days.
How long do they last? With proper care (no heat, no softener), your LUNA+ panties will last for 2 to 3 years. This makes them a very smart investment.
What if they leak? Our technology is designed so they won't leak. Not even sideways. Make sure you have the right size and absorbency for your flow level for the best results.
Finding the right protection changes everything. No more worrying about stains. No more rushing to the bathroom. Just comfort and confidence every day of the month. You are ready to make the switch.
Who Are Menstrual Panties For?
Menstrual panties are designed for women and girls of all ages as a complete, comfortable replacement for pads and tampons. They’re ideal for light to medium flow days, offering reliable protection that feels just like regular underwear.
For heavier flow or high-intensity days, standard menstrual panties may not be enough — that’s where LUNA+ steps in, delivering extra absorbency and leak protection without added bulk.
Every body. Every age. Every day — LUNA+ keeps you cared for. 🌙
Can I Rely on Menstrual Panties?
Most menstrual panties are designed for different flow levels. For light to medium days, they stay thin, breathable, and comfortable — easy to wear and almost invisible under clothes.
But when your flow gets heavier, it’s best to choose high-absorbency or night models. Many brands still use traditional stitching methods, which can let liquid escape once it reaches the seams. Even seamless styles aren’t completely safe — outer fabrics can still soak through over time.
To compensate, some manufacturers add extra absorbent layers. While this may delay leaks, it also makes the panties thicker and less breathable — taking away their main advantage: that light, barely-there comfort.
Are Menstrual Panties Completely Leakproof?
Many brands claim so — but the truth is more nuanced. Most use a breathable waterproof layer at the base, which helps prevent leaks downward. What they don’t mention is that side protection is often missing, which can lead to leaks on heavier days.
That’s why LUNA+ is different — with patented side protection that keeps you safe and confident, even on your heaviest days. 🌙
💡 TIP from LUNAcare
LUNA+ menstrual panties are guaranteed not to leak — no matter the strength of your flow. 🌙 The secret lies in our patented side-protection layer that keeps you fully protected, comfortable, and confident all day.
What Are the Benefits of Menstrual Panties?
- Discreet and stylish — they look and feel just like regular underwear.
- Easy switch from pads or tampons — just wear different underwear on your period days.
- Zero waste — reusable and eco-friendly, so no need to worry about finding a bin in public restrooms.
- Breathable materials — no overheating or “steaming” like with traditional pads.
- High absorbency, ultra-thin design — great protection without bulk (for light to medium flow models).
- Perfect fit — they stay in place and move comfortably with your body.
- Antibacterial protection (in premium models):
- Prevents odor
- Stops bacterial growth
- Eliminates risk of irritation or toxic shock
Comfort, confidence, and care — all in one pair. 🌙
💡 TIP from LUNAcare
The unique advantage of LUNA+ menstrual panties? They simply don’t leak — no stress, no accidents, just comfort and confidence. 🌙
Why Choose Menstrual Underwear?
Menstrual underwear wins you over with its comfort and reliability. No more worrying about pads shifting or leaking — with high-quality menstrual underwear, you’ll barely notice you’re wearing anything different from your favorite pair. 🌙
They’re also a smart, eco-friendly choice that saves money in the long run. Because they’re washable and reusable, you create less waste and more peace of mind.
Menstrual underwear is still a relatively new innovation in feminine care, but it’s quickly becoming the new standard — along with menstrual cups — for women who value comfort, sustainability, and freedom.
💡 TIP from LUNAcare
LUNA+ menstrual panties have been tested for 72 washes — that’s about 3 years of active use with comfort and protection you can count on. 🌙
Save Money with Menstrual Panties
Menstrual panties are an affordable, reliable, and long-lasting solution for your period. 🌙 On average, a woman spends around 100 CZK per cycle on pads and tampons — that’s about 3,900 CZK in three years. Investing in just five pairs of LUNA+ panties costs less over time — and gives you comfort, security, and peace of mind.
How Do Menstrual Panties Work?
Menstrual panties are made from a special multi-layer fabric that combines comfort, breathability, and advanced leak protection.
- The first layer: the soft inner lining that touches your skin. It uses a wicking effect to quickly draw moisture into the absorbent layer below.
- The second layer: the absorbent core that securely captures menstrual fluid and keeps you feeling dry.
- The third layer: a breathable waterproof membrane that blocks leaks while allowing air to flow. (Avoid high heat and fabric softeners when washing — they can damage this layer.)
- The outer layer: the stylish, comfortable fabric that makes LUNA+ panties look and feel like regular underwear.
Menstrual Underwear – An Eco-Friendly Alternative
Menstrual panties are a sustainable, reusable choice that reduces waste and protects the planet. They’re designed to last for years — saving you money while helping you live more consciously. 🌙
💡 TIP from LUNAcare
LUNA+ menstrual panties are OEKO-TEX® Standard 100, Class I certified — meaning they’re completely safe for your skin and health. 🌙
Menstrual panties are highly valued for ecological reasons. They are waste-free and save a lot of waste from pads and tampons.
How to Use Menstrual Panties
How long can I wear menstrual panties?
Without antibacterial treatment, wear them for up to 8 hours. With antibacterial treatment, you can wear them comfortably for up to 12 hours — all-day protection and peace of mind. 🌙
How do I know when to change my menstrual panties?
Change them as soon as you feel moisture. With regular panties, this means they may start to leak soon. With LUNA+ panties — which have side leak protection and antibacterial layers — you can wear them longer and change only for comfort, not out of worry.
How to Care for Menstrual Panties
How to wash menstrual panties
Wash at a maximum of 40 °C and avoid using fabric softeners, stain removers, or bleach. Spin at up to 1000 rpm. We recommend a liquid or gel detergent — it rinses out fully and won’t irritate your skin.
How to dry menstrual panties
- Hang them loosely to air dry — never directly on a radiator.
- Do not iron, as heat can damage the waterproof membrane.
- If you need to dry them faster, hang them near a heater. As a rule of thumb — if you can hold your hand above the heat without discomfort, it’s safe for your panties.
- Tumble dry only on a gentle, low-temperature setting.
Gentle care means long-lasting comfort and reliability. 🌙
💡 Did You Know?
The average woman uses between 10,000 and 17,000 tampons or pads in her lifetime. Switching to reusable options like LUNA+ makes a big difference — for you and the planet. 🌙
How to Choose Menstrual Panties
The Best Menstrual Panties
Wondering which menstrual panties are the best? 🌙 We definitely have our favorite — LUNA+. But here’s a simple guide to help you find the perfect pair for your needs and feel confident in your choice.
Differences Between Brands
Choosing the right menstrual panties is important. You’ll typically need 4–5 pairs (see our guide on how many you need) and the right ones will support you during the days when you want to feel secure and comfortable.
Here’s how to choose — starting with what matters most:
Guide to Choosing Menstrual Panties
1. Flow Strength
For Light Flow
If your period is light, you can choose from a wide range of brands. Most offer reliable protection for light bleeding while staying thin and breathable.
For Moderate Flow
If your flow is moderate, look for panties made specifically for medium to heavy days. Many brands overstate absorbency, so it’s better to go one level higher for true leak protection. Expect these to be slightly thicker — but still comfortable.
For Heavy Flow
Standard menstrual panties often struggle with very heavy periods. They can become bulky, less breathable, and still risk leaking because menstrual flow isn’t continuous — it comes in waves. For full protection, LUNA+ panties are designed to handle heavier flow confidently without discomfort.
For Postpartum Use
In the weeks after childbirth, most regular menstrual panties won’t provide enough protection. Choose night models or pair LUNA+ panties with a menstrual cup for complete peace of mind.
The right pair means comfort, confidence, and care — every single day. 🌙
💡 LUNAcare TIP: It’s Different with LUNA+
The above doesn’t apply to the revolutionary LUNA+ panties. They feature a patented triple leak protection system — guaranteed to stay dry and secure while still remaining beautifully thin. 🌙
LUNA+ panties are designed for both light to heavy flow. On heavier days, you may simply need to change them sooner as they reach full capacity — but comfort and protection never fade.
They’re truly versatile — perfect for any day of your cycle. Because let’s be honest, periods can be unpredictable — and it’s good to have something you can always rely on.
2. Safe for Your Health – Antibacterial Protection
It’s important not to underestimate the risk of irritation, inflammation, or even TSS (Toxic Shock Syndrome). Thanks to the breathable design of quality menstrual panties, these risks are greatly reduced. The fabric allows moisture to dry quickly — unlike pads or tampons — helping to prevent the growth of bacteria.
For added peace of mind, choose panties with antibacterial treatment. This extra protection keeps you feeling fresh, clean, and safe throughout the day. 🌙
A highly breathable third layer made from modern membrane fabric is now a standard feature in every premium-quality pair — helping your skin breathe while staying protected.
💡 LUNAcare TIP: It’s Different with LUNA+
LUNA+ menstrual panties feature an antibacterial treatment without silver — meaning there’s no risk of allergic reactions and they remain gentle, safe, and kind to your skin. 🌙
3. A Cut That Fits You
It’s usually not possible to try on panties in stores. However, when ordering online, you can return or exchange them within 14 days. Take advantage of this — try them on (hygienically over your own underwear) and see how they feel. If they don’t fit quite right, try a different cut or style.
Your panties should feel comfortable and secure — they should stay in place and move naturally with your body, so you can focus on your day, not your period. 🌙
4. Material – Outer Layers
The material matters — and each has its pros and cons. You’ll be washing your panties many times, so durability is key.
If you’re comfortable with modern synthetic fabrics, it’s best to choose nylon with a mix of spandex (elastane). This combination stays elastic, resists wear, dries quickly, and doesn’t trap heat — perfect for long days or warm weather.
If you prefer a more natural feel, cotton is a good choice — soft and gentle on the skin. However, cotton tends to shrink and pill with frequent washing, so its lifespan is about half that of synthetic materials.
While cotton is biodegradable, it’s also resource-intensive to grow and process. For a greener option, look for organic cotton, which is more sustainable and gentle on the planet. 🌙
💡 LUNAcare TIP
LUNA+ is made from premium nylon with 15% spandex. The fabric has a “silk touch” finish — luxuriously soft and smooth, just like real silk. 🌙
5. First Layer – The Absorbent Layer
This layer is the most important — it’s the one that touches your skin, often called the contact layer. It should keep you dry, comfortable, and irritation-free. 🌙
Be Careful with Cotton
Cotton is not suitable for this layer. It tends to spread moisture to the edges, creating a large damp surface that takes a long time to dry. Many lower-cost brands (such as Love Luna) use cotton as the first layer instead of a functional performance fabric. The right fabric should have a wicking effect — it quickly pulls moisture away from your skin into the absorbent core.
What About Wool?
Wool naturally resists odor and has mild antibacterial properties, but it also stays wet for too long. It’s delicate, tears easily, and isn’t ideal for everyday washing. That’s why wool doesn’t belong in the contact layer of menstrual or leakproof underwear.
The right first layer keeps you dry, protected, and confident all day. 🌙
💡 LUNAcare TIP
The first layer of LUNA+ panties is specially engineered to keep you dry and comfortable for longer — up to 2× longer than other panties of similar thickness. You’ll feel fresh, confident, and cared for all day. 🌙
6. Color
Most menstrual underwear on the market comes in black — and that makes sense when there’s a risk of leaks. None of us want stains on our favorite pair. Dark colors simply feel safer.
But with LUNA+, things are different. Thanks to patented leakproof protection, you can wear lighter colors with total confidence. Over time, you’ll find yourself reaching for soft, natural shades that feel fresh and empowering — even on period days. 🌙
Curious how colors can affect your mood and comfort? Learn more about how color influences us .
Price of Menstrual Panties
Prices for menstrual panties can vary widely. This depends on the materials used and the complexity of the production process. The most affordable styles are typically stitched cotton panties without antibacterial treatment, while seamless, high-tech models made from breathable materials cost more — and last longer.
In large retail chains such as ROSSMANN, DM, or Teta, prices are often slightly higher due to distribution costs and commissions. Still, quality menstrual underwear is an investment in comfort, confidence, and long-term savings.
💡 LUNAcare TIP
LUNA+ panties may not be the cheapest — but they’re among the most advanced, offering exceptional quality and long-term value. 🌙
- Guaranteed leak protection thanks to patented technology
- Seamless design — only 1.5 mm thin, yet perfect for heavy flow
- Antibacterial for lasting freshness
- Highly breathable and comfortable for everyday wear
- Made from premium materials — designed to last 3+ years
Because comfort, quality, and peace of mind are worth it. 🌙
Girls’ Menstrual Panties
Is your daughter expecting her first period — or are you helping her prepare? Menstrual panties for girls are the perfect, worry-free choice. 🌙 They’re safe, comfortable, and easy to use — unlike tampons, which can feel invasive, or pads, which can be bulky and uncomfortable. They fit well, look just like regular underwear, and make that first period feel a little easier.
What Do Gynecologists Say About Menstrual Panties?
Gynecologists generally agree — menstrual panties are a great option. Many recommend them for their comfort, convenience, and safety.
“My patients who use menstrual panties love them,” says Dr. Sam Rahman, board-certified gynecologist, clinical associate professor at Northwestern Feinberg School of Medicine, and founder of the Center for Gynecology and Cosmetic Surgery. “They absorb bleeding, are comfortable and affordable, and are also environmentally friendly.”