Organic cotton, double layer masks that go over the head/neck to prevent sore ears. The comfortable materials and colorful fabric designs ensure the best experience. The external layer of our fabric mask is 100% cotton, and the internal layer is antibacterial, antifungal, and anti-static waterproof polyester fabric. Both regular and smalll models include an aluminum wire covered by plastic for the nose. Our product meets the mandatory 5% air permeability in medical masks. Quality proven through various tests. Fully compatible with international standards. Masks come in regular and small sizes.