National Nonwovens, based in the USA, has manufactured wool felt for over 115 years, with Commonwealth Felt as its direct-to-consumer division. Their WoolFelt brand is praised for heirloom quality, natural wool blends, and extensive colors.
WCF WoolFelt blend is 20% Wool, 80% Rayon. TOY Woolfelt blend is 35% Wool, 65% Rayon. BAMM is a Bamboo blend.