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You could also reach us at [email protected].

Swim Period Underwear

Sanitary Pad Free

Leak-Proof Solution

Up to 12 Hour Wear

Use for 100+ Washes

MOQ	100
Size	XXS, XS, S, M, L, XL, XXL
Color	Leopard
Absorbency	Heavy
Holds up to	4 tampons/pads
Fabric	82% Polyamide 18% Elastane

Model: 8018

Flow?

Supply Type	Instock
Sample	Free Sample
7 Days Sampling	7 Days

[email protected]

+86 18126314893

Product Attributes

Panties Type	Bikini	Rise Type	High Rise
Product Model	8018	Certificates	GOTS, GRS, OEKO-TEX100
Abosorbency	Heavy	Holds up to	4 tampons/pads
Lining Fabric	88% Polyamide 12% Elastane	Absorbent Layer	100% Polyester (Biodegradable)
Leakproof Layer	100% Polyester (recycled) & 100% Polyurethane	Outer Fabric	82% Polyamide 18% Elastane
Delivery Time	For item in stock, the delivery time is within 7 days	Delivery Term	Shipping, aircraft, express available
Supply Type	Instock	Payment	D/P, L/C, T/T, Western Union, Paypal, Credit Card

Lead Time

Quantity (pieces)	1 - 200	201 - 1000	> 1000
Lead time (days)	5	15	To be negotiated

Customization Options

What's Customization?

Customized logo (Min. order: 1,000 pieces)
Customized packaging (Min. order: 1,000 pieces)
Graphic customization (Min. order: 1,000 pieces)
Customized Colors and Designs (Min. order: 1,000 pieces)

Product Description

4 Layers Swim Period Underwear

We’re patented for a reason. Independently lab tested and scientifically proven to keep you dry, fresh and odour controlled.

01 Crotch Layer. No Side Leaks

In the crotch area, we use a special design to stop side leaks. You can move, walk, or sit without worry.

02 Absorbent Layer. Strong Absorptuon

The absorbent layer uses polyester, which can hold at least 45ml of liquid. That’s more than a regular pad.

03 Leakproof Layer. PFAS Free

We use TPU, a soft and safe waterproof material with no harmful chemicals. It keeps liquid inside but still lets air flow.

04 Outer Fabric. 50+ UPF

You can choose organic cotton or bamboo fiber for the main fabric. Both are soft, breathable, and good for the skin.

Swimming Period Underwear with Built-In Absorbency

Enjoy carefree swims no matter the time of the month with period underwear designed for swimming. Crafted with 4-layer leakproof protection, this innovative swimwear keeps you secure, dry, and worry-free in the pool, ocean, or hot tub. No more missing out on summer fun—dive in with confidence and freedom. Engineered with multi-layer fabric that absorbs and locks in moisture, these swim period underwear deliver unbeatable protection without bulk. The breathable, quick-dry design ensures comfort while keeping leaks discreetly under control. Each layer works together—wicking, absorbing, and preventing leaks—so you can enjoy every splash with peace of mind.

High Absorbent

Anti Leakage

Odor Control

Certified Organic

12-Hour Leakproof, Odor-Control & Antibacterial

Built-in absorbent layers lock in flow while stopping leaks from spreading, so you can dive, splash, and lounge with total peace of mind. Whether at the beach or the pool, you’ll stay fresh and confident all day long. Crafted with advanced fabric that includes an antibacterial finish, this menstrual swimwear helps control odors while staying gentle on sensitive skin. No irritation, no discomfort—just smooth, breathable material that feels soft and secure against your body. Stay active, feel comfortable, and never compromise on freshness.

Trusted by over 200,000 happy users.
Loved & reordered by big brands.
Bacteria Resistance.
Odor Absorbing.
12 Hours Sustainability.
Up to 40ml absorbency.

40ml Absorbent for Beach & Poolside Events

These swim period underwear are designed to hold up to 40ml of menstrual flow, giving you dependable protection around water—whether you dive in or not. Ideal for beach celebrations, poolside lounging, or holiday escapes, they bring together comfort and confidence when it matters most. A discreet absorbent layer is seamlessly built in, leaving the outer appearance sleek and indistinguishable from regular swimwear. The silhouette stays smooth and secure, while the fabric remains feather-light and soft against the skin, even through extended wear. With this thoughtful design, you can embrace every social moment and stay active without the burden of leaks or discomfort.

Swim Period Underwear PFAS Free

This period swimsuit is crafted without PFAS, a group of synthetic compounds notorious for their persistence in both the environment and the human body. Often called “forever chemicals,” PFAS have historically been used in textile finishes to boost liquid resistance, even in menstrual products. Growing awareness of their potential health risks and ecological consequences has sparked widespread concern. This swimwear is created solely with PFAS-free materials and achieves absorbency and leak defense without the aid of chemical coatings. Instead, its advanced multi-layer construction regulates menstrual flow through natural absorption and protective barriers, ensuring performance with peace of mind. Every component is carefully tested to align with strict safety and quality standards.

Stylish Swimwear with Drawstring Design

Turn heads at the pool or beach with swim period underwear that blends practicality with style. The adjustable drawstring waistband provides a customizable fit, ensuring the underwear stays perfectly in place during swimming, sports, or playful splashes. Featuring a chic patterned design and a flattering cut, it looks and feels just like regular swimwear—while offering the leak protection you need. Perfect for lounging, swimming, or beachside fun, this design keeps you secure without compromising on style.

Outer Fabric: 82% Polyamide 18% Elastane
Leakproof Fabric: 100% Polyester (recycled) & 100% Polyurethane
Absorbent Fabric: 100% Polyester (Biodegradable)
Lining: 88% Polyamide 12% Elastane
Four-way Stretch
Quick-dry Material
No Slipping

Support OEM/ODM & Instock Wholesale

Flexible Bundling: 3-Pack / 5-Pack / OEM Available

We offer flexible packaging solutions tailored to your needs — whether you’re selling on Amazon, running a boutique store, or doing wholesale. Options include 3-pack, 5-pack, or customized bundles upon request.

Absorbency

Absorbency level ≈ 4 tampons/pads

Sustainability

It's not just the volume, we can also guarantee long-lasting absorbability.

Key Benefits of Swim Period Underwear

Purity + Health

Our period panties are guaranteed to be free of harmful substances, such as pesticides and endocrine disruptors.

Ecology

A woman goes through about 290 single-use menstrual products each year, none of which can be recycled or biodegraded.

Helper

The period panties are as comfortable as an everyday wear panty.

Profitable

Our period panties deliver unbeatable value—whether you’re buying for yourself or stocking up wholesale.

4 Layers of Our Period Panties

First Layer

88% Polyamide 12% Elastane

Second Layer

100% Polyester (Biodegradable)

Third Layer

100% Polyester (recycled) & 100% Polyurethane

Main Substance

82% Polyamide 18% Elastane

Periodfactory’s menstrual panties are tested and effective against Staphylococcus aureus, Escherichia coli and Candida Albicans, even after 50 washes.

Still have Questions?

We have answers.

How do period panties work?

Our period panties absorb the flow, and keep you fresh, dry, and protected whenever you're wearing them.

- Anti-Odor & Anti-Humidity : The first two layers banish odors and wick away moisture from your skin to keep you fresh and dry all day (and night).

- Super Absorbent: The inner layer absorbs liquid and locks it in. Depending on the absorbency level you choose, they can absorb up to five regular tampons' worth of liquid.

- Leakproof: The leak resistant outer layer helps protect you from unwanted leaks, keeping your panties as spotless as can be.

Is there coverage in the front & back?

The absorbent area on most of our panties is located primarily within the crotch area, typically one to three inches from the waistband of the underwear depending on the style.

Each panties has a single layer of protection from the absorbent area towards the top of the waistband on front & back. There have a line of demarcation of the absorbent area and extra single lining of the underwear, feel free to contact us for more closely product pictures.

Are these washable?

Yep! Our period panties are machine-washable & reusable, so you can wear them again and again. It’s an eco-friendly product.

Simply rinse them in the sink, then hand wash with cold water or machine washing on a gentle cycle with cold water. Then hang up or lay flat to dry. Pls noted that just steer clear of fabric softener and bleach!

Can I wear them all day?

It depends! If your flow is heavy, we recommend changing them every four to six hours. However, you can definitely wear them for as long as you feel comfortable and under absorption level, especially overnight.

It's possible to wear them over than 12 hours, depending on how light or heavy your flow is. But wearing them for too long isn't something we recommend, since exposure to air might lead to bacteria growth.

Will I smell?

Make sure to care for it properly and wash it to keep things fresh, then no smell.

All of our panties have a thin layer of comfy, ultra-soft & anti-microbial fabric that removes sweat odor and eliminates bacteria to keep you fresh and odor-free. (It’s also have three other layers of fabric for ultimate comfort and protection!)

We have several pairs from Ecowoman and these are our favorites. They are super thin and don't look like we are wearing anything. They are cute and comfortable.

The best purchase lhave ever made. l bought them formy daughter, it was her first time with her period. l was able to make her feel comfortable and secure. I will definitely recommend them to others and will buy more from her in the future.