The North Face - Thermoball Traction Mule V. Color Phantom Grey Heather Print/TNF Black. On sale for $48.12. MSRP $59.00.. 4.8 out of 5 starsAdd to favorites. 0 people have favorited this+3Brand NameThe North FaceProduct NameThermoball Traction Mule VGenderWomen'sColorPhantom Grey Heather Print/TNF BlackPrice$48.12MSRP: $59.00Rating5Rated 5 stars out of 5(1858)