This is a braid rug, which I didn't catch.  I purchased the eight foot runner.  It is both heavy enough to stay flat, and supple enough to tightly hug the up and down of the carpet-to-tile edge in my entry.  My dog already peed on it, and it was easy to rinse that area out and hang it dry.  I am incredibly happy with this cheerful greeting into my home.
An update a year later...
I love this rug!  I've had it in a high-traffic area--though shoes-off--and it has held up remarkably well.  It shows no signs of  wear or  losing its shape.  I'd buy it again.