The flat-iron I use is one inch. I use the cheap-o Andis one with a flat plate and a beveled edge from good ol' Wal-Mart.The shampoo I use is Hydrotherapie from Biolage.I buy most of my product at Target. I find they have the best selection.My middle daughter, the blonde one, has hair to just beneath her shoulders. It is thin and baby fine. So any of you who want to know about hairstyles for shorter...