Soft and comfortable wool felt has been used for the upper of this magnificent clog. The sturdiness ensures durability and insulation, while retaining breathability and softness for your feet, leaving a comfortable foot climate inside. - Anatomically shaped cork footbed provides revitalizing support with every step and is easy to replace and exchange - Slip-resistant rubber sole - Cork footbed molds to your foot for personalized comfort - Wool felt keeps feet warm and breathable year-round