The spectacle is solid and is excellently located. The sunglass lenses are easy to remove. The clip for strength glasses also comes in handy and is secured with a small screw. I do not need him, because I wear contact lenses for climbing and climbing and securing alternate. The prisms are significantly greater than for glasses of well-known manufacturer with 2 letters. The field of view is thus significantly greater, but the spectacle is thus also heavier than the competition. The weight is just ok. Face of practicality both indoors and outdoors, the glasses are at this price a real alternative and thus a strong buy recommendation.
