The cube icon bobble hat has been constructed with a warm and fleecy inner layer and has been made from 100 acrylic a soft lightweight warm fabric with a wool like feel this cube icon bobble hat is designed to keep your head warm and keep all of your body heat in cube icon bobble hat features warm fleece lining one size material 100 acrylic cube eco guaranty cube products with the cube eco guaranty label are tested according to international standards and accredited test methods in