The stretchiness of these bands is exactly what i was looking for and I was happy for some new color choices.  My only issue is that they were about 1 in. wider than they probably should be and are advertised.  I have and use 2.5 in.-3 in. bands on a regular basis and these were definitely wider.  I think about 4 in.  Too big for my smallish head!  It was a disappointment, but it's not stopping me from wearing them.