Buff Thermonet is a fibre innovation developed together with Primaloft. Maximum comfort in icy cold conditions. The tubular scarf for cold temperatures can be taken anywhere and worn in many different ways. Tubular scarves can also be used as a mask. The scarves are by no means a substitute for a medical face mask, but they do provide the wearer and others around them with light protection. Buff high-performance head and neckwear is not intended to be used as a medical-grade face mask or as an effective measure to prevent disease, illness or the spread of viruses. Buff does not produce products that prevent disease or the spread of viruses, nor does it claim to produce such products.