This is a set of 3 Smooth Masks. The Smooth Mask has an open bottom for easy breathing and prevents glasses from fogging up. Materials: Outer Fabric: Coolmax (White) Denim Lining: 100% Cotton Available in two sizes, please check the dimensions. Size when folded in half: Approximately 10 x 11.5 cm Care instructions: Machine wash in a laundry net. Please understand that this is a handmade product before purchasing.