These Face Masks are made from 100% Cotton to ensure comfort & breathability for your child. 100% cotton works well for sensitive skin types and helps eliminates any rashes or sweating which could be caused by polyester fabrics. We have designed them two-tone to give the versatility of two colorways if needed. The Charcoal part of the mask is percale, which is soft against the skin. It is 200 Thread count which is a close weave and will not allow any liquid to spray out the mask. Tie a knot in your elastics or hand stitch to ensure the best fit for your child’s face if needed.