The Buddyrider was originally designed for small and medium size dogs, made to fit as wide a range of dogs as possible.
The maximum recommended weight for dogs is (11.5kgs) all the way up to the maximum engineered weight of the Buddyrider which is 30lbs (13.5kgs).
We have also attached the interior dimensions of the Buddyrider below, alongside collar measurements:


Furthermore, we have added have a table below which has examples of different dog breeds and the maximum weight of each breed that could comfortably fit in the Buddyrider (weight in below table in lbs)