3-layer, reusable, washable, bamboo mask with PM 2.5 filter. Adjustable ear-loops. Matching Bamboo carry bag with drawstring. Bamboo is naturally hypoallergenic, thermal regulating, incredibly soft, moisture wicking and odor & bacteria resistant. Bamboo gets softer as you wash it and is an easy-care fabric. Please remove filter when washing your mask. 95% bamboo viscose, 5% spandex Measurements: Small: 13/14cm (Nose to Chin) x 23/24cm (Ear to Ear) Regular: 15cm (Nose to Chin) x 24/25cm (Ear to Ear) **Because of the stretch of the fabric sizing can vary slightly. *Note: these masks are not medical grade PPE. Please continue to practice social distancing and wash hands regularly.