These Chic Limited Edition pants are on sale every so often at KMart. They feature two front pockets, elastic waist, and are a twill sort of material. There is no zipper. Also, if you lose a size overnight, this is your quick answer!
The colors I saw in store are black and khaki, which are great for work, and in sizes from very small to very large, such as 4-22. There are usually denim jeans as well, and I have seen them in sizes up to 32 or even 34 W. I no longer need extended sizes, but when I did, it was so nice to get jeans instead of just sweatpants. It was also nice to be able to buy affordable work uniforms when Weaver Beavers Oureach was asked to provide them for some women going to work.