Asportuguesas have an innovative and ergonomic design with soles made from a special blend of cork and natural rubber with a comfortable rounded toe shape. The upper on the close is made from natural wool, recycled cotton and water resistant lenzing ecovero, keeping with Asportuguesas' movement towards a more sustainable future. This boot is water resistant, light weight and cozy. 5 inch shaft height and 11.75 inch shaft circumference.