The North Face Thermoball Traction Mule V is an insulated slip-on mule designed for easy on/off wear and reliable warmth in damp conditions. It pairs Thermoball insulation with a water-repellent ripstop upper for practical everyday and travel use. Key attributes: Black | P.E.T. ripstop | Water-repellent finish (non-PFC DWR) | Thermoball insulation retains warmth even when wet | Outsole contains rubber for grip | Collapsible heel with elastic side panels for easy on/off | Oso fleece collar lining for added comfort | Slip-on mule silhouette | Collapsible heel | Composition & care: Upper: 100% P.E.T. ripstop | Insulation: Thermoball™ 100% polyester | Collar lining: Oso fleece | Outsole: up to 20% rubber