Satisfied customer! Hoping that this chin strap will solve the problem to my being as a OPEN MOUTH breather while I sleep, I am pleased to say that this chin strap followed through. Such a comfortable chin strap and so simple and adjustable I was able to make and find the correct fittings for my big head. The Velcro makes it so convenient and the elastic strap makes it a nice snug comfy fit. Worth it.