Bare Bones now use a proprietary blend of 100% reprocessed industrial plastic (scrap plastic) and 10% calcium carbonate from limestone reducing the plastic content. This bag contains a filler of calcium carbonate from limestone reducing the plastic content by 10%. Our bags still have the same sturdy 1 mil thickness and measure 9 1/4″ x 13 1/2″. 100 bags to a wicket, and 30 wickets per case (an incredible 3000 bags per case!)