High-Waist Seamless Period Underwear (Heavy Flow) LY1217

 

High-Waist Seamless Shape
It’s seamless period underwear with a high-waist cut that actually stays put. The “super leg fit” means the leg openings are designed to move with you—no digging in, no riding up. Just smooth, comfortable coverage that works under any clothes.
Stretchy Nylon Fabric
Made from high-elastic nylon that stretches four ways. It bends when you bend, moves when you move, and bounces back in the wash. No bagging out after a few wears. This is comfortable period underwear you can wear all day and forget about.
Extended Full-Leak Proof Coverage
Full front-to-back coverage means no gaps, no bare spots. And we’ve tested it—up to 8 hours of protection for heavy flow days. Sleep through the night, get through a workday, don’t think about it.
Made by a Real Manufacturer
We’re not a middleman. We’re the period underwear manufacturer with 34 years in the game. 68,000m² facility, 700+ employees. Need custom period underwear or period underwear wholesale? We build it from the ground up.

This product is currently out of stock and unavailable.

seamless period underwear
High-Waist Seamless Period Underwear (Heavy Flow) LY1217

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Customization Options

Custom logo printing service for period underwear - design your own
Period underwear style customization - bikini high waist boyshort options
Custom absorbency levels for period panties - light heavy overnight
Period underwear functional customization - leakproof antibacterial breathable
Custom fabric options for menstrual underwear - bamboo cotton organic
Custom pattern design for period panties - solid color prints
Custom packaging for period underwear - eco-friendly box bag options

Product Description

4 Layers Incontinence Menstrual Underwear

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

4-layer leak proof design of non toxic period underwear

01 Inside Layer-95% Cotton+5% Spandex

Soft & breathable fabric, skin-contact layer with no irritation.Rapidly wick:moisture to keep skin dry.

02 Absorb Layer-390gsm 80% Polyester+20% Nylon

The absorbent layer uses polyester, quickly locks in menstrual blood/discharge, no rewetting-even for heavy flow.

03 Leak Proof Layer-Breathable PUL

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

04 Outer Layer-80% Nylon+20% Spandex

Smooth, silky nylon-spandex blend with excellent elasticity and quick-drying properties. Feels soft against skin, retains shape wash after wash

Absorption Zone – Full Front-to-Back, Plus Side Strips

The absorbent layer runs the entire length of the gusset—front to back, no shortcuts. But here’s what makes LY1217 different: we added waterproof strips on both sides. So even if you’re a side sleeper or moving around a lot, leaks stay inside where they belong. It’s shaped to match the body so it doesn’t bunch or shift. For high waisted period panties, this is next-level coverage.

high waisted period panties
leak proof underwear for women

Absorption Capacity – Heavy Flow, Up to 8 Hours

LY1217 is built for heavy flow period underwear—real heavy, not marketing heavy. Holds enough that you can wear it for up to 8 hours without thinking about it. Overnight, workdays, travel days. For brands, this is your heavy-duty option for customers who need serious protection without changing every few hours.

period underwear wholesale

Fabric – Seamless Nylon with Bamboo Absorbent Layer

Here’s what you’re actually getting: The main body is seamless period underwear construction—nylon-spandex blend that’s stretchy, quick-drying, and shape-retentive. No seams means no VPL and no irritation. The absorbent layer is bamboo-based, naturally antibacterial so it controls odor without chemicals. Whole thing’s OEKO-TEX certified and PFAS-free. For buyers, that means clean materials, easy compliance, and period underwear for heavy flow that customers actually trust.

Who Is It Designed For

Daily Wear
Designed for everyday comfort, our period underwear helps manage daily vaginal discharge and light moisture. Breathable fabrics and a thin absorbent layer keep wearers feeling fresh, clean, and confident throughout the day without bulk.
Menstrual Use
Engineered for reliable protection during light to heavy menstrual flow, the multi-layer absorbent core locks in fluid and prevents leaks. Suitable for standalone use or as backup protection, depending on flow level and design.
Pregnancy & Postpartum Use
Thoughtfully designed to support pregnancy and postpartum needs, including increased discharge during pregnancy and lochia after childbirth. Soft, stretchable fabrics offer gentle support and comfort during sensitive stages.
Light Bladder Leaks
Ideal for women experiencing light urinary incontinence, our underwear provides discreet absorbency and odor control while maintaining the look and feel of regular underwear for everyday wear.
Period underwear manufacturer with 34 years factory experience OEM ODM Oeko-Tex Sedex certified

4 layers of our period panties

30x

Greater breathability

2x

large absorption capacity

17x

greater menbrane impermeability

first layer

skin-friendly inner layer

second layer

high-absorbency core layer

third layer

leak-proof barrier layer

Main substance

breathable outer layer

first layer

skin-friendly inner layer

second layer

high-absorbency core layer

third layer

leak-proof barrier layer

Main substance

breathable outer layer

customized services

Period underwear customization services - logo style absorption fabric pattern color options

waterproof strips

Waterproof edge strips for 360° leak protection

instant absorption

Instant liquid lock - stays dry on contact

antibacterial silver ions

Natural odor control, fresh all day

still have questions?

we have answers

It means the leg openings are cut and elasticized to fit snug without digging in. No gaping, no riding up, no red marks. You can move around—run, sleep, stretch—and it stays put. That’s the whole point of seamless period underwear done right.

Most period underwear only protects the middle. LY1217 has waterproof strips built into both sides—an extra layer of protection where leaks like to sneak out. Plus the absorbent layer runs full front to back. So yeah, it’s about as leak-proof as it gets.

That’s exactly what we do. We’re a period underwear manufacturer with 34 years experience, not just a brand. For custom period underwear (your tags, your packaging, your specs), MOQ is 500 pieces per style per color. We also keep stock styles with no minimum if you want to sample or test small batches first.

We’re OEKO-TEX certified, fabrics are PFAS-free, and we’re SEDEX certified for ethical manufacturing. Facility is 68,000m², 700+ employees, 1.5 million units monthly production. We can provide all compliance docs you need. If you’re looking for a period underwear wholesale partner who actually makes the product, that’s us.

Additional information

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S, M, L, XL, 2XL

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Black, Blue, Green, Purple

ABSORBENCY: No selection

Heavy

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