How High-Quality Seamless Bonded Period Panties Are Made
When it comes to premium period underwear, quality and reliability are non-negotiable. High-quality seamless bonded period panties are not simply stitched together; […]
When it comes to premium period underwear, quality and reliability are non-negotiable. High-quality seamless bonded period panties are not simply stitched together; […]
https://shanhaoundies.com/wp-content/uploads/2026/06/seamless-laser-cut-panties-video.webm Seamless laser-cut panties represent one of the most advanced innovations in modern intimate apparel. Unlike traditional garments sewn with visible stitches […]
While the apparel industry constantly talks about sustainability, true decarbonization requires a fundamental rewrite of traditional manufacturing. The image below captures what […]
The period underwear industry is evolving rapidly, and one of the biggest challenges has always been balancing high absorbency, leak protection, comfort, […]
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.
Shanhao ProFlow Heavy Flow Period Underwear — 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.