Shanhao Undies | Certified Period Underwear Manufacturer
  • Home
  • OEM Product
    • Period Panties
      • Hipster
      • Bikini Brief
      • High Waist
      • Mid Waist
      • Thong
      • Boxer Short
      • Sleep Overnight
    • Women Ordinary Panties
    • Women’s Bras
    • Period Swimwear
    • Maternity Bra & Panties
    • Women Incontinence Underwear
    • Men Incontinence Underwear
    • Menstrual Pads
    • Dance Underwear
    • Sleepwear
    • Sportswears
    • WetBags
  • For Wholesale
    • Light Flow Panties
    • Medium Flow Panties
    • Heavy Flow Panties
    • Normal Panties
  • Ship From USA
  • About Us
    • Team members
    • F.A.Qs
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  • Blog
  • Contact Us
0
  • Home
  • OEM Product
    • Period Panties
      • Hipster
      • Bikini Brief
      • High Waist
      • Mid Waist
      • Thong
      • Boxer Short
      • Sleep Overnight
    • Women Ordinary Panties
    • Women’s Bras
    • Period Swimwear
    • Maternity Bra & Panties
    • Women Incontinence Underwear
    • Men Incontinence Underwear
    • Menstrual Pads
    • Dance Underwear
    • Sleepwear
    • Sportswears
    • WetBags
  • For Wholesale
    • Light Flow Panties
    • Medium Flow Panties
    • Heavy Flow Panties
    • Normal Panties
  • Ship From USA
  • About Us
    • Team members
    • F.A.Qs
    • Gallery
    • Product Inquiry Form
  • Blog
  • Contact Us

Author: Nazim Shanhao

peroid swimwear
2025-09-262026-09-14Product

How to Choose the Right Period Swimwear

Swim confidently with leak-proof period swimwear Periods Don’t Have to Stop Your Swim Days. You’re excited for a pool party or beach […]

pure cotton
2025-09-222026-09-14Product, Textile Fabric

Which Material Is Best for Women’s Panties?

Panties are an everyday essential for women, and since they are in direct contact with intimate areas, choosing the right fabric is […]

powerfull absorption
2025-09-222026-09-14Product, Textile Fabric

The Ultimate Guide to Cotton Period Underwear Supply

Looking for cotton period underwear suppliers?  Shantou Shanhao Knitting Co., Ltd. is a leading manufacturer of functional underwear, including period panties, shapewear, […]

How Much Blood Can Period Underwear Hold?
2025-08-292026-09-14Testimonials

How Much Blood Can Period Underwear Hold?

One of the most common questions people have when shopping for period underwear is: how much blood can they actually hold? The […]

Menstrual Panties Wholesale: Global Trend and Buying Guide
2025-08-282026-09-14Testimonials

Menstrual Panties Wholesale: Global Trend and Buying Guide

Menstrual panties are quickly becoming a must-have product in the women’s underwear market. With growing demand for eco-friendly and reusable alternatives to […]

How Do Period Panties Work? A Closer Look at the 4-Layer Gusset Technology
2025-08-252026-09-14Testimonials

How often should you change period underwear: a complete guide

Period underwear is a comfortable, reusable, and eco-friendly alternative to pads and tampons. Designed to absorb menstrual flow and prevent leaks, it offers […]

working princeiple
2025-08-112026-09-14Product

How Do Period Panties Work? A Closer Look at the 4-Layer Gusset Technology

Period panties have become popular for their comfort, sustainability, and convenience. But have you ever wondered how they actually work? Let’s dive […]

No More Bulky Diapers: Discover Shanhao’s Revolutionary Incontinence Underwear
2025-07-252026-09-14Product

No More Bulky Diapers: Discover Shanhao’s Revolutionary Incontinence Underwear

Tired of bulky adult diapers, unreliable pads, or constant worry about embarrassing leaks? You’re not alone. Many people managing bladder leaks struggle […]

How We’re Reinventing Sample Packaging
2025-07-112026-09-14Testimonials

Shanhao Undies x Sustainability: How We’re Reinventing Sample Packaging

https://shanhaoundies.com/wp-content/uploads/2025/07/WeChat_20250711103513.mp4

Period Swimwear vs Traditional Swimwear: Why Period Swimwear Is the Future
2025-06-272026-09-14Product

Period Swimwear vs Traditional Swimwear: Why Period Swimwear Is the Future

Periods shouldn’t pause your lifestyle especially not your time in the water. Whether you’re swimming, surfing, or relaxing poolside, you deserve swimwear […]

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Shanhao Knitting

Shantou Shanhao Knitting Co., Ltd. is a factory in Shantou City with its sales department in Shenzhen. We specialise in reusable leakproof period underwear, incontinence wear and maternity garments, producing 500,000 panties and 100,000 bras every month for brands across Europe, Australia, the Americas and South Africa.

Products

  • Women Period Panties
  • Women Incontinence Underwear
  • Men Incontinence Underwear
  • Maternity Bra & Panties
  • Period Swimwear
  • Menstrual Pads
  • Dance Underwear
  • Wet Bags

Company

  • About Us
  • Team Members
  • F.A.Qs
  • Gallery
  • Ship From USA
  • Blog
  • Product Inquiry Form
  • Contact Us

Contact Us

  • Phone / WhatsApp+86 181 2512 1337
  • Emailrose@shanhaoundies.com
  • Sales officeB1105, ZhanTao Technology Building, Longhua District, Shenzhen, Guangdong, P.R. China
  • FactoryXianbohuan East Road, Gurao Town, Chaoyang District, Shantou City, Guangdong, P.R. China

Copyright © 2026 Shantou Shanhao Knitting Co., Ltd. All rights reserved.

ISO 9001OEKO-TEX 100GOTSBSCIGRS

Flow Guide

Choose your flow type based on the number of pads, tampons or cups you use in approx. 12 hours.

1pad
Light
3pads
Medium
4pads
Heavy
5pads
Super Heavy
1tampon
Light
4tampons
Medium
5tampons
Heavy
7tampons
Super Heavy
½cup
Light
1cup
Medium
2cups
Heavy
2½cups
Super Heavy

These are guide figures, not medical advice. Absorbency is measured under lab conditions and real-world results vary with fit and activity. If your flow soaks through in under two hours, speak to a healthcare professional.

Size Chart

Find your true-to-size fit:

SizeUSUKEUHip (cm)Waist (cm)
XS4–68–1036–3888–9266–70
S6–810–1238–4092–9670–74
M8–1012–1440–4296–10074–78
L10–1214–1642–44100–10478–82
XL12–1416–1844–46104–11082–88
2XL14–1618–2046–48110–11688–94
3XL16–1820–2248–50116–12294–100
4XL18–2022–2450–52122–128100–106

Swipe sideways for EU, hip and waist

How to measure your size

Waist

Wrap the tape around the narrowest part of your natural waistline.

Hip

Measure around the fullest part of your hips with feet together.

Fit tip

Between two sizes? Size up for a relaxed, overnight-ready fit.

Measurements are body measurements, not garment measurements. Tolerance is 1–2 cm on finished garments. For private-label orders we can build to your own size spec.