DOUBLE LAYER 100% Silk Face Mask helps protect you from dust & debris Made with the highest grade (6A) long fiber mulberry silk, with a thickness of 22 momme and enforce the strictest quality guidelines, including non-toxic dyes. (Oeko-Tex Standard 100 Certified) USE INDOORS OR OUTDOORS to protect against dust, pollen, pet dander. Perfect for home, work, walks, social gatherings and camping Silk is naturally temperature regulating - it is comfortable during all seasons. Washable and reusable. Simply hand wash with with a delicate detergent. Adjustable straps help keep the silk mask for dust comfortably and secure. Mask covered area is 7.5” width x 5.5” height when expanded. Adjustable ear loops are 5.5” and stretch to 8"