are made of a special light weight 2-way stretch knit of 71% polyester and 29% nylon and covered spandex which enables the stocking to adapt to variations of leg sizes better than standard knits. Length 17-19" #853-05-XXL(calf 19-21") #853-06-XXXL(calf 21-27") 12Pr/Bx Latex Free UNSPSC#42142802-- Other Bariatric sizes can be ordered by the box.