Here is some information on how Batting is described: Polyester batting thicknesses are 10 oz is 1" (one inch) thick. 6 oz is 1/2 inch. 8 oz is 3/4 inch, and 4 oz is 3/8 inch. The thin batting is for garments, such as for the lapels of jackets and coats. BE AWARE of what you are buying. TALK to the clerks. When buying online, ASK QUESTIONS, and get answers before you buy.