How warm is this coat?

It is a quilted padded coat for fall and mild winter, not a deep-cold parka. The padding is polyester and no fill weight or temperature rating is given, so treat it as a layering piece.

No water-resistance is claimed. The polyester shell and hood handle light drizzle and wind, but a real rainstorm will soak through.

It is described as a regular fit with regular sleeves and comes in S through 3XL. It is cut to layer over a sweater, so most shoppers can take their usual size.

The shell and padding are 100% polyester. That makes it light and easy to clean, but less warm for its bulk than a down-filled coat.

Yes, the hood is attached. There is no chest padding, so the torso relies on the quilting and whatever you wear underneath.

How should I care for it?

Follow the care label. A polyester quilted coat generally washes on a gentle cycle and air-dries, and quilting can clump if it is tumble-dried on high heat.