This Balaclava-ViralOff is thin, warm and comfortable. It is black and one size fits most. Features ViralOff Technology which is an anti-microbial treatment added to the textile to protect the product from contamination. It reduces 99% of viruses on the fabric within 2 hours of wear. When not using the product it self-sterilizes and can be re-used without washing if you desire. As an added benef, the ViralOff treatment does not absorb body odors, helping the fabric to stay fresh. Less washing is required, which means less maintenance/work and it's better for the environment. ViralOff is a durable and always on treatment which will remain at full strength for a minimum of 15 washes. Hand wash only when needed/dirty, use mild soap, and hang to dry.