Before using a backpack with your dog for the first time, you should consult your veterinarian for advice on suitability and the appropriate weight your dog can carry, as the weight your particular pup can safely manage will be affected by factors such as his health, age and breed. As a general rule, a healthy, adult dog can carry a maximum of 25% of their bodyweight in their pack – although 10-15% is probably more ideal. When you first start using a dog backpack, pack it light, and work up to a heavier weight as your dog gets used to it and builds up his endurance. Make sure to always distribute the weight evenly over each side of the backpack and never overload your dog’s backpack, as carrying too much weight can be uncomfortable and even hurt them.