Is a wind coat warm enough for winter?

No. It is an unlined shell that stops wind and light rain but adds almost no warmth. Wear it over a fleece or sweater in cold weather, or choose an insulated jacket instead.

How is it different from a trench coat?

A trench is longer, heavier and usually belted for a dressier look, with limited wind protection. A wind coat is shorter, lighter and built to cut wind, and it packs away easily.

Will it keep me dry in rain?

It handles drizzle and short showers if the shell is water-resistant. Prolonged rain will soak through unless the seams are sealed and the fabric is fully waterproof.

Does it pack down small?

Most wind coats stuff into their own pocket or a small pouch. Check the product details for a packable pocket, since not every version has one.

How should I size it?

Many wind coats are cut roomy so they fit over layers. If you plan to wear it over a sweater, take your usual size; for a close fit over a T-shirt, consider sizing down.