Since other Singer's Masks are on Back-order, I ordered these items to use when I teach voice lessons. They perform well for this purpose but are a bit cumbersome to take on and off so that I can sip water while I sing or teach. They are very beautiful, but my wardrobe is limited when I wear them. The strap around my neck is a bit long, and I have to shorten it as much as possible. However, I'm able to drop my jaw when I sing, and also able to take deep breaths and not suck in the mask in the pr...