. The North Face - ThermoBall™ Traction Mule V. Color TNF Blue/TNF White. $58.95. 4.8 out of 5 starsNew Color+8Brand NameThe North FaceProduct NameThermoBall™ Traction Mule VGenderMen'sColorTNF Blue/TNF WhitePrice$58.95Rating5Rated 5 stars out of 5(2500)