I think that is what I got from FarmTek a few yrs ago. If so, make sure you order it at least 2 sizes larger than you think you need. I'd normally take a men's medium but ordered a large and that is on the snug side. Course the material is like a very heavy oilskin in the first place so it doesn't tend towards being supple. As long as it's not a cold rainy day, it's OK for pouring rain but if it's really a cold rain, think 40's, that you have to put a heavy sweatshirt or jacket under it, you're just about SOL.
You might do better trying to find some wind/rain pants at a sporting goods store like Dick's or Gander Mountain. I got some at Dicks a few yrs ago that weren't that expensive. Here's a pretty reasonable pair from Dick's: