Made up of Three layers, both outer layers are made from 100% Cotton fabric, inner layer is an Ultra-Lightweight and Nonwoven Interface made of %100 Polyester blend. Nose wire is flat, adhesive on one side and made of bendable aluminum. Mask is not medical grade or meant to function in place of an N95 mask. Machine washable (delicates/cold water)and dryer safe (low heat)but will last longer being hand washed. I make these masks by hand so size measurements and pattern placement may vary a bit