Reviewers say the masks fit well and seem to be durable. Masks come in three sizes: kids, adult small and adult large. Kid-size masks start at $13 each, while adult masks start at $18 apiece.
CARDIOIDShop's masks look like standard silk or cotton material but have been treated to repel water. They're available in sizes for small kids, older kids, and adults, so everyone can fit them.