Description from Knitty.com:

Few things are as versatile as a cardigan, and this one will get you through winter in style.

Errata: This applies to the medium size only.

On the fronts, when you are shaping the neckline and

“AT THE SAME TIME: When work measures 21.5 (23, 24, 25.5, 27) inches…”

The armhole measurements just after this are correct, but the total piece should measure 23 inches, not 21 inches as stated in the pattern.

I apologize for any confusion or frustration this has caused.