This is again my own improvisation. I used an Estonian lace stitch pattern. The mohair is probably some 220-250 m/25 g (no label, hence it is my educated guess).

Started from the bottom. The pattern repeat is 10 st. CO 90 st + 1 + 4 edge stitches (2 from each side). Thus, I had 9 repeats that I devided as follows: 5 for the back and 2 + 2 for the front parts. Knitted 11 repeats, then devided the knitting (back and front sides). Knitted 4 repeats separately, then knitted the sholders together (bind off with 3 needles), leaving the live stitches on the neck part (1 repeat). Picked up stitches on the sides plus the stitches of the neck, knitted 20 rows of 2 x 2 ribbing (138 stitches alltoghether). Simple and seamless construction, easily adjustable for different sizes. The vest weighs 35 g.

Other people’s versions of my design: Eila