Is this coat warm enough for winter?

Not on its own. The polyester shell has no insulating fill, so it works as a fall or mild-winter layer. In freezing weather you need a sweater underneath or a heavier coat.

How does polyester herringbone compare with wool herringbone?

Wool blends look richer, breathe better and hold warmth. Polyester holds its shape, resists wrinkles and is easier to clean, but it can feel less breathable and build static.

What do I wear under a round-neck coat?

A turtleneck, a collared shirt or a high-neck knit fills the open neckline. A scarf also works if you want coverage without a collar.

Does the double-breasted front run true to size?

Double-breasted cuts usually need room across the chest to button cleanly. If you plan to layer knits underneath, consider sizing up.

How should I care for a 100% polyester coat?

Check the care label first. Most polyester coats wash cold on a gentle cycle or need dry cleaning to keep the structured shape; avoid high heat, which can shrink or shine the fabric.