Ulle manufactures wool inner slippers in two different wool qualities - Ulle Original and Ulle Mohair. All slippers are manufactured in Europe by a family-owned company dating back to the end of the 19th century. According to the family's philosophy, it is important that all steps in production take place in harmony with nature. Therefore, the slippers have a distinct connection with nature where authenticity and quality are obvious ingredients, which results in a consistently high quality that customers can rely on.