Nice and thick. Using it as a foyer rug, initially some sand-like substance came off underneath the rug, didn’t love that, but easy to vacuum up. So far doesn’t look like it’s unravelling, but we’ve only had it for a week, it looks like it could unravel a bitC, I poked one part back in that looked like it was loosening. 
No off gassing which i love as I have young children in our home.