From website:

NL28 V-NECK VEST
finish-as-you-go

SIZES: Men or Women, 38” (42”, 46”, 50”)

YARN: Worsted weight

NEEDLES: Size 5 & 7

GAUGE: 5 sts & 7 rows = 1”

This vest is knit in one piece up to the underarm and then divided and continues to the shoulder. The bottom, arm and front bands are worked in twisted rib. Easy to read and great vest for men.