Why We Are Shifting Toward Low-Water Manufacturing in Apparel (And Why It Matters)
In the apparel industry, we often talk about the final product, the fit, the fabric, and the function. But lately, I’ve been […]
In the apparel industry, we often talk about the final product, the fit, the fabric, and the function. But lately, I’ve been […]
https://shanhaoundies.com/wp-content/uploads/2026/05/Seamless-Period-Pantiess.mp4 The Challenge of Automation in Seamless Period Panties In the seamless underwear industry, there are now machines capable of automatic glue […]
Most women use sanitary pads every month without ever questioning what they are made of. They are often marketed as “soft,” “cotton-like,” […]
In the evolution of period underwear, one of the most critical yet overlooked innovations lies in edge construction. While most brands focus […]
The demand for organic cotton period underwear is growing rapidly as consumers shift toward safer, PFAS-free, and eco-friendly menstrual products. Today’s buyers […]
Unlike traditional stitched underwear, Shanhao seamless period panties are engineered for durability, convenience, and long-term performance even under high heat conditions. Our […]
When it comes to thong underwear, comfort and invisibility are everything. A good thong should stay in place, feel smooth against the […]
Switching to period underwear is a smart step toward comfort, sustainability, and convenience. One of the most common questions is: How many […]
At Shanhao, packaging is more than protection.It’s part of the product experience. For period underwear brands, the right packaging must balance functionality, […]
Many disposable pads use plastic-based layers for absorbency and leak protection. Here’s why it happens, what it means for […]
Choose your flow type based on the number of pads, tampons or cups you use in approx. 12 hours.
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.
Find your true-to-size fit:
| Size | US | UK | EU | Hip (cm) | Waist (cm) |
|---|---|---|---|---|---|
| XS | 4–6 | 8–10 | 36–38 | 88–92 | 66–70 |
| S | 6–8 | 10–12 | 38–40 | 92–96 | 70–74 |
| M | 8–10 | 12–14 | 40–42 | 96–100 | 74–78 |
| L | 10–12 | 14–16 | 42–44 | 100–104 | 78–82 |
| XL | 12–14 | 16–18 | 44–46 | 104–110 | 82–88 |
| 2XL | 14–16 | 18–20 | 46–48 | 110–116 | 88–94 |
| 3XL | 16–18 | 20–22 | 48–50 | 116–122 | 94–100 |
| 4XL | 18–20 | 22–24 | 50–52 | 122–128 | 100–106 |
Swipe sideways for EU, hip and waist
Wrap the tape around the narrowest part of your natural waistline.
Measure around the fullest part of your hips with feet together.
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.