The panties that grow with her. Designed to support teenagers from their first period to the end of adolescence, the One Size Menstrual Panties – Medium Flow adapt to all body types from ages 10 to 16, thanks to an innovative ultra-stretch material. 🤫 Its secret? The MemoryStretch thread: an ultra-fine shape-memory polyamide, capable of following every body change while returning to its original shape. Durable elasticity, without deformation or sagging, even after many wears. Equipped with our 3-layer absorbent technology, it offers reliable protection for up to 12 hours, without moisture, odor, or leaks, for a flow equivalent to 2 tampons. And because it is seamless, it remains completely invisible under clothing – for optimal comfort, with complete discretion. No more changing sizes every 6 months: one pair of panties that lasts and reassures.