Having a ponytail helps it work fine along with a connecting strap along back of head.
Neat concept but the ear elastic will not stay on and pulls off. I took a strap and connected the ear pieces across the back of my head which helped. The earpieces still popped off after a while so I laid the connecting strap over my pony tail and it didn't slide down onto the back of my neck. I was able to wear the shield like this for several hours without issues and it was comfortable. The chin piece helped the mask stay off my face. This will work if you have a connecting strap to attach to the ear pieces. Without a strap, this kept falling off my ears. Now that I have made my own adjustments, I am happy with the product. I took off 2 stars for supplying my own strap.
Rating: 3 stars