Buff® Thermonet® is a fiber innovation developed in collaboration with Primaloft®: super lightweight, extremely thin, outstanding heat retention, quick-drying, soft, and made with 70% recycled PET bottles. It offers maximum comfort in icy cold conditions. The tubular scarf for cold temperatures can be taken anywhere and worn in many variations. Tubular scarves can also be used as masks. However, these scarves do not replace a medical face mask and provide only minimal protection for the wearer and those around them. Buff® performance head and neck wear is not intended to be used as a medical-grade face mask or as an effective measure to prevent diseases, ailments, or the spread of viruses. Buff® does not produce products that prevent diseases or the spread of viruses, nor does it claim to manufacture such products.