I love, love, love these collars! I don't have a Pittie but I thought I would give them a try. I have a 40 lb mix breed that continues to get out of her collar, no more. At first I was nervous because you have to slip it over their head and then tighten but once it's sized that's it, it doesn't tighten or loosen during wear. They are so cute and well made!!
I have a Boxer, Mastiff mix and these collars are great for him !!! We have the Chicago,and sloth collars. We get so many compliments!