A soft to the touch mask made of 100% organic cotton non-woven fabric for the mouth and surface sheet. ● 100% organic cotton 　Cotton with excellent moisture absorption absorbs moisture from the inside of the mask and prevents uncomfortable stuffiness and condensation. 　Soft sheets of cotton relieve friction of the mask with skin that has become sensitive to winter dryness and pollen. ● High-quality filters 　A high-quality filter that cuts 99% of virus-containing droplets, pollen, PM2.5, etc. is sandwiched inside the sheet. 　(PFE 99% / BFE 99% / VFE 99% MEASURED AT NELSON LABORATORY IN THE U.S.) ●Made in Japan 　It is manufactured at a partner factory in Shizuoka Prefecture. - Oeko-Tex Standard 100 Class I Obtained international certifications to certify the safety of our products. More than 350 substances have been subjected to the world's highest level of analytical testing. <About the bioRe Project> The cotton used is fair trade organic cotton born from the bioRe Project, which conducts social projects such as the employment of local women. It has a natural softness that synthetic fibers do not have.