One of the most common questions people have when shopping for period underwear is: how much blood can they actually hold?
The answer isn’t the same for every pair. It depends on the style, cut, and the size of the absorbent area. At SHANHAO Functional Underwear Factory, we design and manufacture period underwear that combines comfort, absorbency, and style, made to meet the needs of both everyday consumers and global B2B partners.
Absorbency Depends on Style and Cut
Different customers demand different solutions. Here’s a breakdown of average absorbency levels across the most common period underwear styles:
Thong Period Underwear – Holds about 10ml (≈ 2 regular tampons). Ideal for light flow or as a backup to cups/tampons.
Bikini & Brief Styles – Holds 20–30ml. The best-selling style globally for moderate flow protection.
Boyshort Period Underwear – Holds up to 40–50ml, with extended absorbent panels. Suitable for heavy flow, overnight use, or long wear protection.
Why Absorbent Area Size Matters
The larger the absorbent area, the more capacity the underwear has. For example, a thong has a narrow gusset, limiting absorption, while a boyshort provides extended coverage across both the front and back panels.
SHANHAO Manufacturing Advantage
As a professional functional underwear manufacturer, SHANHAO offers more than just ready-made styles. We provide OEM/ODM services designed for global B2B partners who need performance-driven menstrual products.
Our competitive advantages include:
Custom Absorbency Levels – Choose from 10ml, 20ml, 30ml, 40ml, or 50ml capacity to suit your target market.
Diverse Styles – From thongs to high-waist designs, ensuring your product line appeals to different customer preferences.
Certified Fabrics – OEKO-TEX certified bamboo, organic cotton, and breathable leakproof membranes.
Flexible MOQ & Bulk Production – Scalable solutions for both startups and large retailers.
Eco-Friendly Production – Reusable, washable, and sustainable processes that align with modern consumer values.
Final ThoughtsSo, how much blood can period underwear hold?
- Thongs: ~10ml
- Bikinis/Briefs: ~20–30ml
- Boyshorts: ~40–50ml
At SHANHAO, we help global buyers design menstrual underwear that balances science, comfort, and sustainability. ensuring your brand delivers the protection and performance your customers expect.
👉 Looking for a reliable period underwear manufacturer for your wholesale or private label business? Contact SHANHAO today to discuss custom solutions tailored to your market.