From designer:

A rich spectrum of browns and a handsome allover rib team up in this wonderfully warm and cozy mock turtleneck cardigan that’s sure to be an autumn staple. It’s been created with a standeard zipper, but for a more flexible design, you can sew a two-way zipper.

Open-ended zipper to fit:
First 3 sizes: 28 inches (71 cm.)
Last 2 sizes: 30 inches (76 cm.)

Amount of yarn necessary to complete project (from smallest to largest): 7, 8, 8, 9, 10.

Actual measurement:
45 3/4, 48 1/2, 51, 53 3/4, 56 1/2 inches.
116.5, 123.5, 130, 136.5, 143.5 cm.

Lenght:
24 1/2, 24 1/2, 24 1/2, 25 1/4, 24 1/4 inches.
62, 62, 62, 62, 64, 64 cm.