Was very skeptical about the statement "they don't slip". I have heard and read that a lot with head bands. I have spend hundreds of dollars on head bands only to find that they slip right off my head. I have thin hair, and short of holding most head bands with pins or clips they all slip off. I was at an conference and a vendor had these. I was assured that they stay in place, so I bought one. True to stated, they stay in place. I was completely shocked and ordered more from their web site. My new favorite head band now. LOVE THESE.