Swimming during your period is possible!Discover Héléades, our waterproof menstrual swim briefs that can be worn without additional protection for the entire duration of the cycle. Thanks to its unique technology based on the combination of a fitted cut, OEKO-TEX®STANDARD 100 certified silicone anti-leak seals and our iconic menstrual membrane, our menstrual swimsuits are waterproof and allow real absorption of periods (equivalent to 2 classic tampons) for up to 12 hours.0 blood dispersion in water, 0 swelling when wet, 0 stains on towel. Its low-cut, scooped shape offers perfect freedom of movement while swimming. The panties are sold separately. It's up to you to match it with your favorite swimsuit top.⚠️For total effectiveness, this swimsuit is worn very fitted, we recommend that you take your measurements and consult our size guide. If you have any questions, please do not hesitate to contact our customer service at +33 9 78 46 89 60. For young girls, we recommend taking their measurements rather than choosing based on their age or clothing size. OEKO-TEX® STANDARD 100 certified: certificate no. CQ1285/2. Materials resistant to salt water and chlorine.Protects from UV rays (UPF 50+).