Is this shirt good for business casual?

Yes. The button-down front and regular fit work well with chinos or under a blazer. It is less formal than a spread-collar shirt but fine for most offices.

How does the regular fit compare to slim fit?

It leaves more room through the chest, waist and sleeves than a slim fit. If you prefer a trimmer silhouette, size down or look for Van Heusen's slim styles.

Is the cotton poplin wrinkle-resistant?

It is standard cotton poplin, not a non-iron finish, so it will crease. Expect to iron or steam it after washing for a crisp look.

What sizes are available?

It comes in standard neck and sleeve sizes for men. Check the specific listing for the neck size and sleeve length offered, since availability varies.

Can it be machine washed?

Yes, it is machine washable. Wash cold and hang or tumble low, then iron while slightly damp for the best result.

Does it work under a suit?

It can, especially in white or light blue. The point collar sits neatly under most suit jackets, though it is less structured than a formal dress shirt.