These German combat belts are built tough! They are made with heavy canvas webbing with a pebbled metal buckle. Used by the German Bundeswehr during the Cold War, these would carry the soldier's equipment. 

These are all in used condition but are still in great shape, ready to be used out of the box. 
These are adjustable for more comfortable wear.
 
The sizing option is for the maximum size the belt can extend to. Just measure your waist (where your bellybutton is) and the number you come up with is your waist size. 
 
Sizing options are in inches.