Hello, you're looking at a pair of gray Gap Body Fit workout pants. They have a smooth exterior with a light fleece feel inside. They are 57% cotton, 39% polyester, and 4% spandex, so they have a bit of a stretch.
They measure about 16 inches across the waist and about 39 inches from the top of the hip to the bottom leg. There are also guideline stitches if you wanted to make them shorter by cutting or cuffling them.
Condition-wise, they are in good to very good condition. There is slight pilling on the fabric and drawstring, but I probably only wore them 4-5 times on the elliptical, so they are in good shape.