Amazon.com : Neewa Canicross & Skijoring Belt to Run or Walk with Your Dog with Dog Running Leash Hands Free 2 Dogs or One, Dog Walking Belt for Multiple Dogs (One-Size-Fits-All, Black) :
Trixie Canicross Leash Belt 75-120 x 9 cm Black | Bricoinn
Dog harnesses from Seleverkstedet® | Leading Knowledge of Ergonomics