From designer:

When the mercury rises but evenings remain cool, look no further than this spring cover-up. This waist-length version of the basic cardigan features rib accents along waist and sleeves. I love this colorway, but I encourage you to work your favorite colors into the design for different results.

Amount of yarn necessary to complete project (from smallest to largest): 4, 5, 5, 6, 6.

3 buttons size 1 1/2 (3 cm).

Actual measurement:
34 1/2, 36 1/2, 38 1/2, 40 1/4, 42 1/4 inches.
87.5, 92.5, 97.5, 102.5, 107.5 cm.

Length:
22 1/2, 22 1/2, 22 1/2, 23 1/4, 23 1/4 inches.
57, 57, 57, 59, 59 cm.