Allyson . . . when I began working with Ron we used a bath towel that was folded and twisted. The theraband is too elastic and the yoga strap can be too stiff. I have used the StretchOut Strap in the past; however, I reinvested in the red braid ($50) as it is best in giving dynamic feedback to stabilize the shoulder girdle allowing a taught towel sensation rather than the feeling of a bar.