How does this blazer fit compared with US sizes?

It runs small. The listing states Asian sizes are one to two sizes smaller than European and American sizing, so most shoppers should size up, especially across the chest and shoulders.

What is the blazer made of?

The shell is roughly 81–90% polyester with 10–29% spandex for stretch, and the lining is about 71–80% polyester. It is a lightweight, slightly stretchy jacket rather than a wool suit blazer.

Is it warm enough for winter?

No. It is a medium-length, unlined-weight layer suited to spring, fall and indoor office wear. In cold weather it works best under a coat or over a sweater.

Can I wear it as part of a suit?

Only if you find matching trousers in the same fabric and color, which this listing does not include. On its own it pairs well with dark trousers, jeans or a dress.

How should I care for it?

The high-temperature setting and polyester blend mean low heat. Wash cold on a gentle cycle or hand wash, and hang or lay flat to dry to avoid shine and shrinkage.