This is a O/S knitted vest
I used Casasol XL cotton but have also made a couple in Malabrigo chunky yarn.
It is knitted in the round bottom up until the arm opening. Then it is knitted flat divided into left wearers front, right wearers front and back.
It uses 479 yards for my gauge.
The gauge is 17 stitches and 22.5 rows for a 4x4 inch square.
Finished measurements are 20 pit to pit, 22.5 length