I wanted to start up a basic Steampunk outfit on a tight budget, and these goggle are just right for the job.  The are light, making them good for strapping to a hat all day, with a an easily adjustable elastic strap.  They probably wouldn't be comfortable on the face for long periods, but the tint would help on a bright day.  Another plus is, at the price, they're good for experimenting, for painting or modifying.  Better to mess up on these than something more expensive.