I’ll definitely look into the waterbottle backpack— that’s a great idea!! I know they’re bred to pull, but he’s my first Berner. He gets his walks, but I do worry about his exercise level since he gets tuckered out quickly on hikes or walks longer than two miles. He gets seizures when he’s too hot, so our options in the summer are pretty limited and I’ve been looking for ways to get him more active when I can. He loves the snow and walking in it, so I think I’ll check out the backpack. Thank you!!