Hey Des I sent you a PM last night about it, let me know if you didn't get it. Can I just exchange the ones I have for smaller ones? I measured him and he's like a 12", but if they shrink and add room for the pad, I'm not sure. The ones I just got from you measured out at 17". My old ones are 15" and big. I'm guessing 12 1/2 or 13". I'm so confused!!!