This video shows the making of the Tudor fabric straps, which are woven by the same company that makes the Vatican robes. The material is much higher quality than a typical Nato style fabric strap. And while they look similar to a Nato, they do not have the extra fabric at the end, making the closure more like a traditional pin and buckle equipped strap. Moreover, the spring bars are connected directly to the straps, and secured to the case, as opposed to traditional Nato straps which are looped through the spring bars.