Has anyone used a neck cooling bandanna?

[DebW]

I've heard of other people doing well with those, but my experience is negative. It insulated my neck - the part of the gel closest to my body took on my body heat, prevented my own sweat from evaporating and cooling me there, and didn't exchange heat at all with the outer part of the bandanna, which presumably stayed cool.

I tried one and had the same experience, but if I rotated the gel bandana frequently so the outer became the inner, then it provided some cooling. However, I think a plain bandana that I squirted water on frequently worked as well or better.