The one I am looking at is the Toklat Woolback dressage girth. I can get it with elastic on one side for $65 US or both sides for $85. I just don't know the importance of double elastic. I know that all of the English girths my trainer has are only elastic on one side.....AND all the western girths I have used have no elastic at all too! But if it is worth it to pay the extra $20, then I will do it.