The North Face - ThermoBall™ Traction Mule V. Color Clay Grey TNF Tiger Stripe Print/TNF Black. $58.95. 4.8 out of 5 stars+5Brand NameThe North FaceProduct NameThermoBall™ Traction Mule VGenderWomen'sColorClay Grey TNF Tiger Stripe Print/TNF BlackPrice$58.95Rating5Rated 5 stars out of 5(29)