Is this sweater warm enough for winter?

On its own, no. The fine merino knit is thin, so it works best as a layer under a coat or jacket. For cold days indoors, a thicker lambswool or cable knit is warmer.

Merino is much softer than standard wool, and most wearers say this sweater doesn't itch. Very sensitive skin may still feel the fine fibers at the neck.

How should I wash it?

The label says 30 degrees. Use a wool or gentle cycle with cold water and lay it flat to dry. A mesh bag and wool detergent reduce pilling and stretching.

Does it fit true to size?

Uniqlo's merino knits are cut slim and generally run true to size. If you want room to layer a shirt underneath, consider one size up.

Is it 100% merino wool?

Uniqlo's merino sweaters are typically all merino wool, though fiber content can vary by season. Check the care label on the specific sweater before buying.

Can I wear it without a shirt underneath?

Yes. The merino is soft enough to wear against the skin, though a thin undershirt helps protect the knit from sweat and reduces how often you need to wash it.