One Size, Uni-Sex, Tight Knit Jersey, Trim/Ear loops: 100% Ring-Spun Cotton Covered Elastic for flexible and comfortable fit, The Everyday Mask is treated with an antimicrobial agent that contains silver to control odors and does not claim to provide any antiviral or infection prevention/reduction or make any filtration claims, Chin dart providing a more secure fit around the chin, Washable and reusable (we recommend washing before using), Machine washable up to 60C/140F (max 10 washes), Non-medical grade, 100% Ring Spun Cotton