Smoon is the French brand of technical clothing and underwear with unique seamless technology that accompanies women from adolescence. Between comfort, performance, respect for the body and the environment: Smoon makes no compromises! The ASTERIA menstrual cycler is made of a 100% integrated menstrual membrane with an absorption capacity equivalent to two tampons. This membrane is made up of three high-performance materials (one draining, one absorbent + antibacterial and one waterproof + breathable) to bring you peace of mind and performance during your period: A unique seamless integrated technology that guarantees foolproof waterproofness and invisibility, 0 smell, 0 leakage, 0 feeling of humidity thanks to technical and durable materials, Protection for 12 hours with an absorption capacity equivalent to 2 tampons, A sheathing and breathable main material for freedom of movement and excellent support. The item is STANDARD 100 by OEKO-TEX® certified. The tests and checks carried out by the OEKO-TEX® institute verify the absence of chemical substances considered harmful or undesirable (=tolerance 0), or their presence at very low concentrations (=limit values) presenting no risks known to human health. Washable, reusable and durable, SMOON seamless menstrual clothing is an eco-friendly, healthy and economical alternative to disposable period products.