Period panties have become one of the most empowering innovations in modern underwear. Comfortable, reusable, beautifully designed, and made to support you on your cycle, they’re a game changer for anyone who wants less stress and more freedom during their period.
At Lingerie Living, we feature Dear Kate, a beloved brand that designs menstrual panties with patented technology and PFAS-free materials. This guide walks you through what period panties are, how period panties work, how to wash and care for them, and whether they’re right for your lifestyle.
What Is Period Underwear?
Period panties, also called menstrual panties, are specially designed underwear with built-in absorbent, leak-resistant layers. They replace or supplement pads, tampons, or cups, depending on your flow and comfort level.
Menstrual panties typically have a multi-layer gusset that:
- Absorbs fluid
- Wicks moisture away from the skin
- Prevents leaks
- Stays breathable and dry-feeling
- Does not use PFAS or harmful chemical treatments
The Ada Full Brief offers full coverage, soft stretch fabric, and silky comfort that feels like your everyday underwear (just smarter).
How Do Period Panties Work?
Period panties function using layered engineering that pulls moisture away from your skin and traps it in the gusset. The gusset features:
- A soft, wicking top layer to keep you feeling dry.
- An absorbent inner layer designed to hold light to moderate flow.
- A leak-resistant, breathable exterior that prevents staining while still allowing airflow.
Do Period Panties Work for Heavy Periods?
Menstrual underwear brands make period panties that absorb up to a specific number of tampons’/pads’ worth, depending on the style. Be sure to check how much fluid a specific panty style absorbs and choose according to your flow.
For heavy cycles, menstrual panties also work well as backup protection or for nighttime when paired with another product. They help prevent leaks and provide peace of mind when you need it most.
Are Period Panties Safe?
The answer is absolutely, as long as you wash and care for them properly. Make sure to follow the appropriate care instructions to get the most out of your pair.
Dear Kate’s styles contain no PFAS, no chemical treatments, and no topical absorbers. They rely solely on fabric layering and design technology, making them a safe option for daily or overnight menstrual protection. The materials are breathable, non-toxic, and suitable for sensitive skin.
How to Use Period Panties
Using them is simple:
-
Choose your absorbency level
Choose a panty style that works best for you, depending on whether you’re having a light, moderate or a heavier flow day. -
Wear them like normal underwear
No bulky pads. No shifting. No worries. -
Swap pairs throughout the day if needed
On heavier days, you may prefer a fresh pair after 8–10 hours. -
Have a small rotation
Most people keep 3-5 pairs in their cycle kit.
How to Wash Period Panties
Caring for period panties is easy and can keep them lasting for years. Here’s a step-by-step guide on how to clean your menstrual underwear:
- Rinse in cold water until water runs clear.
- Machine wash on cold (or on gentle cycle) with mild detergent.
- Avoid fabric softeners (they affect absorbency).
-
Air-dry only to make sure your panties last longer.
Dryers can break down absorbent fibers, so avoid heat.
Are Period Panties Worth It?
Here’s why they’re such a popular switch:
- Reduce waste from disposable pads/tampons
- More comfortable and breathable
- Stylish, soft, and modern
- A great overnight option
- Cost-effective over time
- Ideal backup for cups or tampons
- PFAS-free, chemical-free designs
Period Panties vs Other Menstrual Products
| Product | Best For | Pros | Cons |
| Period Panties | Light-moderate flow, backup, sleep | Comfortable, reusable, discreet | Not made for swimming |
| Pads | Moderate-heavy flow | Easy to use | Can feel bulky |
| Tampons | Moderate-heavy flow | No-show | Needs regular changing |
| Menstrual Cups | All flows | Reusable, long wear | Learning curve |
Other FAQs About Period Panties
Do You Wear Pads With Period Panties?
You can, but you don’t need to.
Menstrual panties are typically designed to be worn without pads, since the built-in layers absorb fluid and prevent leaks. For heavier days, you can pair them with a cup or tampon for extra security.
Can You Swim in Period Panties?
The short answer: No, not in standard period panties.
For instance, Dear Kate’s styles are not designed as swimwear. The absorbent gusset will take in water, not provide leak protection in a pool. For swimming, you'd need a dedicated period swimwear style.
Are Period Panties Comfortable?
Yes, and especially the ones from Lingerie Living, which are designed to feel like your softest everyday underwear. No stiffness, no crunchy layers, no bulky padding. Just a smooth, light, breathable fit with added confidence.
Where Can I Buy Period Panties?
You can shop the menstrual panties directly on Lingerie Living. Additionally, make sure to visit and browse our thongs, briefs, bikini collections, and more.
We carry styles that offer industry-leading technology, exceptional comfort, and safe, breathable materials that match our lingerie philosophy: elevated, modern, and made for real life.