Our doormats are 18"x30".
The pile is 100% coir (fiber from the outer husk of a coconut). The back is a PVC rubber backing.
Every doormat is hand painted and will vary slightly.
We use exterior paint and seal the mat with a clear protective coat. We suggest you keep it in a covered area, such as a patio, porch or entryway, so that the fibers don't fade from the sun or get darker from the rain.
To clean, simply shake out the mat.