The whole point at this practical fanny pack is the decorative disk plug which is shoved by the lid and locks the bag for certain so at a leather strap. 

 

The cut is based on historical bags of the 14th century by which was used this Verschlusstechnik use.
It is Linkerhand well to see how this bag is locked correctly. 

 

Produced made of velvetily soft cattle napa leather and a firmer leather uppers in 2 mm of strength.