Merino Wool Fleece Hat. Extremely warm, our new Merino Wool Fleece Hat is the best choice to get the warmest protection and the coolest style in cold weather conditions. Mulesing free and respectful with nature, it will biologically degrade one (far away) day. Remarkably soft and cosy, it is the ideal hat for enjoying low-intensity outdoor activities and day to day as walking around town, commuting to work and ice skating. One size fits all. Designed for adults.