Low price but really happened at the height

Comprehensive product design (even if only one colors) and functional. Rigid box that contains all the kit and really protects well in a backpack or luggage. You can also use the flexible protective cover if there are too bulky rigid case for a garment bag. Provided cleaning cloth. Glasses really solid and easy to change: Remove exiting first the glass groove of the nose clip and voila! Up one level: initially engaged the glass in the corresponding oval top notch, located at the junction of branches on each side and a new clip on the nose clip (well as it should). I use them for cycling with adjustable lanyard, no fog despite the sweat, lightness and ergonomics: you do not feel them at all. Very good really cheap, useless to deny it. Packaging and delivery Amazon tip-top as usual!