Shaper panties :)
I know nothing about these except I ran across them online today. I usually purchase my spanx-style panties from Dress Barn and am very pleased with them. They're around $20 a pair. These are 2 pair for $7 plus whatever tax or shipping may be.
http://www.lakeside.com/Online%2BOnly%2BSpecials/2-Pk.-Rear-and-Tummy-Control-Panties/prod650003.jmp?sorted=C&fm=catalog&navAction=jump&navCount=0&catalogBookId=3493&catalogId=catalog630012
lap RNY 5-15-13