-I don’t have a trainer, but I always say that Zar is my personal trainer. Nobody is better than him! Watch the inspiring story of Manuel Merillas Moledo, Skyrunning World champion trail runner and his personal trainer, Zar the border collie. 🐾 🎥 @mlandpictures #nonstopdogwear #unleashyourpotential #mytrainingbuddy #bordercollie #traildog #trailrunning