It's made from 2 mm black shoulder leather except for the fastening strap, made for regular 4 mm bridle leather.
I hate button-fastening for many reasons... so I decided for this more original one. It can be both opened or closed using two fingers. Here's a self-explaining fastening sequence:
The leather lace is used to add further security, during long movements or such: simply wrap it around the machete's handle and tie a knot.