Theory size S Black Pull-on Pants

These black pants were worn only once as the waistband got too tight after I gained a few pounds. They have an unusual fashion forward shape and cuffs as can be seen in the third photo. The front has a flat panel while the back is gathered at the waist. They have slit pockets as can be seen in the fourth photo. The fabric is soft and silky, yet can be machine washed. The stretchy waistband measures 14" across and the inseam in 25.5."