Probably the world's most breathable running mask. Runner designed and runner approved. NOT A MEDICAL MASK.
WARNING: Intended for use in sports by healthy individuals and and is not intended to protect against viruses or other transmissible diseases. This covering has not been tested or certified as personal protection equipment or to other medical standards. Can be worn over a medical mask if required by your local regulations. Not recommended for use in crowded areas or indoors. Not a replacement for hygiene standards like washing hands and practicing safe social distancing. Please respect your local COVID-related laws.