List of what Kirkland Signature brands actually are? : Costco
May 26, 2010·Diapers are likely made by Huggies. Uh, I'd have to say that's impossible because the Kirkland diapers are terrible at holding up to what my baby daughter puts out. I always buy the Huggies instead. But they are cheaper at Costco, so there's that. Edit: maybe its because they have a size 1-2 rather than size 1, size 2.