Can Tinfoils be adjusted?

[Cogsworth]

Looking at a few Daily Prizm models and I like the Tinfoils but I tried them on today and the fit is kind of tight. I was just wondering can these be adjusted like a regular pair of eyeglasses to loosen up the fit? Thinking of either these or Tailhooks with the Daily Prizm lenses. Tailhooks fit great of course because of the spring hinges.

 

[sheppard]

the nose pads can be adjusted and the wire legs can be stretched out