Swim Pants

Hello! 

I'm not Muslim, but I thought perhaps this group might be able to help me with a swimwear problem. I want to be able to go to the community pool without having to show my legs. I've seen pictures of Muslim ladies wearing full-leg swim-suits before, but I don't know where to buy such things (in Canada or online that could ship to either Canada or the US). Also, do the pants come separate from the tops? I don't need a full Islamic swimsuit, just the pants part. I don't mind showing my shoulders, but really don't like showing my legs... and regular swimwear and athletic shops all seem to favour either the "panty"-look or shorts.

Any help or suggestions would be appreciated! Thank you!