Northern California Fibershed Sourced Natural Indigo and Madder Root Dyed Combed Top. Rambouillet Wool Sourced at the Bare Ranch in Northern California, Dyed and re-carded after dyeing for more loft and easy drafting. Two batts are available ranging in size from 3.2 to 3.6 oz. All USA fiber and labor. Northern California Fibershed Certified Product, Climate Beneficial TM.