The Nappiness bamboo cycle underwear has been designed with advanced technology, they have four layers instead of the three of the Nappiness cotton menstrual underwear, ensuring greater protection and absorbency. Really comfortable for the skin especially for summer, they do not cause irritation or a feeling of overheating. Even more ecological and sustainable because they consist mainly of bamboo fiber, a very fast regrowing plant. Their anatomical shape has been designed to adapt perfectly to your body, ensuring maximum comfort and protection. Black color, available in 9 sizes. Composition: outer 95% bamboo fiber 5% spandex Absorbent part composition: 80% polyester 20% nylon Machine wash at up to 40° after cold rinsing. Do not use bleach or fabric softener or dryer. Oeko-Tex Standard 100 certified for the well-being of your customers' skin.