So far I am very happy with the purchase. These straps were very easy to adjust for size. Black is just a black belt. Light brown with green stripes looks stylish and goes well with both brown trousers and blue jeans. Without metal, they have to pass through airport security without having to take off and change planes. Update: After a few months, the straps started fraying a bit at the ends. The elastic band at the end of the belt has stretched and is slightly deformed. But overall they look very good and work very well.