Long line panty girdle still in the package circa 1960s. Off-white nylon and spandex stretch fabric (brand name Helenca). It is designed to smooth the tummy, derriere and thighs and comes to a few inches above the knee. It has detachable garters (included). According to the package this is an everyday undergarment designed for comfort . "wonderful for work, dress, or play, even for active sports..." 

The tag inside reads Pretty Girl and it claims to be a "one size fits everybody" garment which is just Not So since it also says it will fit between a 24" and a 30" waist. In my book that means a Small-Medium range. 

I have two of these girdles, both still in the original packaging. I opened one to make sure the fabric had not discolored over time and that they still had stretch. A-OK on both counts :) putting them in the excellent condition category.