I have the  worst problem with the "leather" belts found in most plus-size clothing stores.  Most of my jeans end up too large at the waist and need to be cinched by a belt.  However, I find to have the belt tight enough that it doesn't feel as if my pants will fall off, the belts will often roll or fold over, eventually causing tears in the composite-type materials.  It is impossible to find a real solid leather belt for plus size women (at least for under 50 dollars) and decided to try this route of an elastic belt that still has a leather detail in the front.  The belt fits in jeans belt loops just fine and is a good fit (I wear a size 22).  I am still not sure if this will give me the security of a stronger belt, but at least it does not roll or fold over.