Wool has been used in footwear for years, but it has been used as mostly a filtered or boiled wool product, which has its limitations. 
James and Paul wanted to make it better... so they took super-fine Australian Merino wool and made an upper using 3D knitting machines. By kitting the fibers together in a 3 dimensional pattern they were able to add strength and depth to the upper. Super-fine Australian Merino wool is the best quality wool in the world. Merino wool is the best quality wool in the world and has numerous beneficial and natural qualities. It is soft, durable, lightweight yet strong, natural and breathable, sustainable, renewable and biodegradable, making it the perfect fiber to seamlessly knit into beautiful footwear.