Long vest with a deep v-neck in a 4-colour horizontal pattern.

Yardage given is the total for all 4 colours. Sizes S, M, L, XL, XXL call for the following amounts of Pure Wool 4 ply:
Colour A 3, 4, 4, 4, 5 balls
Colour B 2, 2, 2, 2, 3 balls
Colour C 3, 3, 3, 3, 4 balls
Colour D 2 balls for each size

Also recommends a 3mm circular needle to knit the neckband but the length is not specified.