very comfortable, but slide off when walking fast These were really very comfortable trausers. I'm sadly size 20 but ordered 18 as 20 was sold out. Surprisingly 18 were fitting very well and at first impression they looked like my perfect pair. Unfortunately they started sliding off my waist when I started walking. I have the same issue with most of the trausers. The elastic inserts in the tummy area and the shape of the trausers are very flattering though.