Hoka - Men's Challenger 7. Color Harbor Mist/Castlerock. Low Stock. $144.95. 4.3 out of 5 stars1 left in stock+13Brand NameHokaProduct NameMen's Challenger 7GenderMen'sColorHarbor Mist/CastlerockPrice$144.95Rating4Rated 4 stars out of 5(563)