Designed with circular principles in mind, the Smartwool® Cabin Mule Slippers are crafted with pre-consumer Smartwool® Merino wool. Their upper is made of a fabric that blends the moisture management, temperature regulation, and odor resistance of Merino with recycled polyester. These low-top slippers are designed with a wool lining for long-lasting warmth. Their collapsible heels give the versatility to wear as a mule or a closed-back slipper. These slip-on sandals feature a recycled Merino wool-lined foam insole for added comfort.