Instruct: Classify the given Amazon review as either positive or negative.
Query: Sunglasses as Advertised

I've been using the toaster polarized sunglasses for several months and they have been performing well. They stay secure to my face while running/biking/skiing without the need for a strap, and I have not identified any uncomfortable pinch points in achieving the secure fit. Although the plastic frame is very flexible, this has not been an issue with any aspect of the glasses functionality. The added lens colors are a nice option and are in keeping with the intended athletic-oriented use of the glasses.