The vest is knitted as two long rectangular strips that are joined with a crocheted chain.
The pattern is one size but can easily be adjusted to a bigger size by adding stitches to the pattern of moss stitch between the lace pattern

I used 6 balls of Nikkim (100% cotton DK) and about half a ball of Serina (100%bamboo 4 ply) in a matching colour to join the two panels.

In USA all colours are available from https://globalartisans.shop/collections/vc-nikkim
See https://www.vinniscolours.co.za/#home for all distributors.