4 Layers Leakproof Underwear for Menstrual
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. Soft & Eco
You can choose organic cotton or bamboo fiber for the main fabric. Both are soft, breathable, and good for the skin.
This menstrual underwear offers soft and dependable protection for many different needs — from menstrual flow to postpartum recovery, maternity, incontinence, and elderly care. Designed with comfort and high absorbency in mind, it helps provide confidence and support through every stage of life.
Sometimes, bladder leaks can happen when you least expect it. Urge Urinary Incontinence is a sudden urge to urinate, followed by urine loss. The bladder muscles squeeze at the wrong time and cause leaks.
Physical changes to the body like pregnancy and childbirth can cause bladder leaks. 4 out of 5 new moms first experience a bladder leak when pregnant or after giving birth.
Periods can come early, late, light, or heavy, and changes in your body or stress can make your cycle different from time to time, which is completely normal.
As people get older, they may face problems like incontinence or other health issues that need extra care, and our period underwear offers comfort and protection to support their daily needs.
Up to 12 Hours Protection & Resist Bacteria and Odors
These low-rise menstrual panties are designed to keep you protected, dry, and worry-free — whether you’re sleeping, working, or going out. The multi-layer leakproof core absorbs up to 40ml of flow (about 3–4 tampons’ worth), locking in moisture instantly without stickiness. Soft, breathable fabric helps reduce sweating and odor, while the eco-friendly materials make them easy to wash and comfortable for daily use. With a sleek, low-waist fit, they offer both reliable protection and a smooth, confident look that feels just like regular underwear.
- Trusted by over 200,000 happy users.
- Loved & reordered by big brands.
- Up to 30ml absorbency.
- 12-hour leak-free wear.
Side Leak Barrier Design ≈ 40ml Absorption
This bikini period underwear is built with a multi-layer absorbent system that can manage up to 40ml of menstrual fluid. Each layer works together to draw moisture away from the skin and lock it deep inside to keep you dry.
To reduce side leaks, the design includes integrated leak guards that offer extra protection during movement, rest, or sleep. The outer layer helps block fluid from seeping through, while the inner layers stay soft and breathable for lasting comfort throughout the day.
It also features built-in side leak guards that help prevent flow from escaping during movement, sitting, or lying down. The outer layer is water-resistant to block leaks, while the inner layers are soft and breathable for all-day comfort.
Chemical Free Period Underwear
PFAS are not just one single chemical — they are a large group of around 12,000 substances that can stay in the body and environment for a long time. These chemicals break down very slowly, which is why people call them “forever chemicals.” Some period underwear and hygiene products may include PFAS, often used to improve absorption or prevent stains. However, these chemicals can enter products through the raw fabrics or materials suppliers use — even without the brand knowing. We choose only safe, PFAS-free materials. Our products are carefully designed to protect against leaks, stay breathable, and feel soft on the skin. Every item goes through strict testing to ensure safety and comfort. This is period protection that’s made with care — for your body, and for the future.
No Lines. No Bunching. No Distractions.
This menstrual underwear features an extended absorption area that covers the bigger front and back zones, offering better protection while sitting, sleeping, or moving.
Our seamless design disappears under even the tightest outfits — leggings, bodycon dresses, yoga wear, and more. Its stretch fabric offers just the right amount of elasticity — hugging your curves without digging in or rolling up. The crotch is lined with ultra-soft, breathable cotton for lasting freshness, while the outer mesh layer made of lightweight, durable nylon boosts airflow and prevents shrinkage.
- Outer Fabric: 78% Nylon 22% Spandex
- Leakproof Fabric: Breathable TPU
- Absorbent Fabric: 100% Polyester
- Lining: 80% Polyester 20% Nylon
Classic Underwear for Menstruation
This low-waist menstrual underwear is great for daily use, sleeping, or after giving birth. The medium leg cut offers a good mix of coverage and comfort, while the full back design helps stop it from moving, rolling, or bunching during long wear. The shape and stitching follow the body closely, making it more comfortable and keeping the absorbent layers in the right place to stop leaks. Compared to thong styles, this design gives more room for absorbent layers, so it works better for medium to heavy flow days. It stays in place and gives steady protection whether you're working, resting, or traveling. With a simple and classic look, this style fits both younger and older women.
Support OEM/ODM & Instock Wholesale
- Free Sampling & Prototyping
- Quality Guarantee & Hassle-Free Returns
- Responsive After-Sales Service
- Flexible Customization & OEM Support
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.
Fast Intro
Period Underwear 9403
Premium period underwear for brands: low moq, customizable, PFAS-free, sustainable fabrics like organic cotton, bamboo & modal. OEM/ODM with strict quality control.
Product SKU: 9403
Product Brand: Period Factory
Product Currency: USD
Product Price: 2.9
Product In-Stock: InStock
4.9
Size Chart
The size chart is for reference only. For exact measurements or custom sizing requests, please feel free to contact us. We support a wide range of size customization to meet different needs.
