Bought the Thermal leggings in black as I'm outside alot (dog walker) they are so soft and stretchy and lovely and warm. Wore them for 4 days in a row and they kept their shape and didn't go baggy. I've since bought the normal ones but did go upto a medium. I'm a size 12 and had read that size down in the thermals but get your usual size in standard leggings. Love them both. The thermals have washed nice as well