they were advertised 'like On TV' from the auction I bought them from on ebay. The short shapers have no 'brand name' in them- but the pants shapers say 'Leggs Brand'.
I bought these when I was a size 18 and barely got them on. And I wasn't comfortable at all. And they are supposed to be xxl. So--- i would say they would fit very well for anyone size 10-16. They aren't 'stiff' like a girdle- but they hold your shape much better than control top pantyhose. They have extra 'hold' at the hips and thigh area.