Stitch pattern is a very tight rib. Vest is designed for more body and less drape.

Finished measurements:
Bust circumference (closed) - 39.5( 43.25, 47.5, 51.25, 55.25)“ 100.5(110, 120.5, 130, 140.5) cm
Finished length: 36.75(57.5,58.5, 39.25, 40)” 93.5(95.5, 97.5, 99.5, 101.5) cm

Yarn used:
Rowan Alpaca Soft DK
Shade 202 Trench Coat - 11(12, 13, 13, 14) balls