This legging style by JAAM Apparel features:
Indulgent fit in several forgiving sizes
Luxurious 92% polyester and 8% spandex blend stretch milk silk.
Women's OS 2-12
Women's PLUS 12-22
This is an estimate, everyone's body is different. Take your best guess at what size you are and if it doesn't work out you can send it back for a different size or a full refund. :-)