Gonflable, i can only speak about the Doberman I owned... she was the sweetest dog I've ever had. Gentle, loving, docile, playful... Dobermans had a reputation for a while as being dangerous attack dogs, but that's mostly a thing of the past in America, imo. My girl wouldn't have bitten a flea... and she had been abused as a puppy before we got her. My uncle found her on the highway and she'd been burnt with cigarettes all over her head and back when she was about 4 months old. We took her in and she turned out nicer than any dog I've had. I still miss her.