These custom 4-layer heavy flow period panties provide reliable leak protection. The nylon fabric feels smooth, lightweight, and breathable. The seamless design offers comfort and confidence during menstruation and daily wear.

• Smooth nylon fabric for soft comfort
• Seamless construction for a discreet fit
• Leakproof design for reliable protection
• Breathable material for everyday comfort
• Reusable and washable for long-term use
• Suitable for menstruation and light leakage

We craft each pair with full seamless construction, removing bulky side stitching and thick raised edges. This special tailoring creates a totally discreet fit, with zero visible panty lines under tight trousers, dresses, leggings and uniform bottoms. Wearers can move freely in offices, schools or on trips without worrying about embarrassing outlines showing through outerwear.

Beneath the nylon surface sits a functional 4-layer composite leakproof system specially developed for heavy menstrual flow. The layered structure rapidly absorbs large volumes of liquid, locks fluid firmly inside and blocks backflow, side leakage and rear overflow all at once. It delivers reliable long-lasting protection to avoid unexpected stains on clothes or furniture.

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