Therefore I chance to think that all Nature and the graceful sky are symbolised in the art of geometry.
- Johannes Kepler

This is a pattern for a top down knit, with a circular yoke and 3/4 length sleeves, using the stranded colourwork technique. This jumper has a generous fit and may be worn with 4 - 12 in/10 - 30.5 cm positive ease.
#sizeinclusive

Stitches are cast on for the neck, which is shaped using the German Short Row technique. The yoke is worked, beginning at centre back, worked to desired length and then stitches are separated for the sleeves and body. Each element is worked, continuing the stripe motif, until desired length, before being bound off.

yarn:
Willamette by, Imperial Yarn
(Imperial Yarns Are Made of 100% Sustainably Harvested American Grown Fiber, Climate Beneficial Certified)
DK / 8 ply; 100% Wool; 105yds (96m) / 57g
approximate yarn amounts:
MC (Charcoal) - 3 (4, 4, 4) 5, 5, 5 (6, 6, 7) skeins
CC1 (Montana Sky) - 2 (3, 3, 4) 4, 5, 5 (6, 6, 7) skeins
CC2, CC3 & CC4 (Sunset, Pearl Grey, and Moss) - 2 (2, 3, 3) 3, 4, 4 (4, 5, 5) skeins each colour
If you work longer sleeves or body, you will need more yarn.

needles:
3.75mm (us no 5) circular 24in/60cm; DPNs for sleeve (if you are using for rib)
4.0mm (us no 6) circular 40in/101cm; DPNs for sleeve
4.5mm (us no 7) circular 40in/101cm; DPNs for sleeve

gauge:
20 sts x 21 rnds = 4in/10cm over stranded stockinette on 4.5mm needles
20 sts x 24 rnds = 4in/10cm over single-colour stockinette on 4.0mm needles
stockinette and 4.0mm needles with single-coloured stockinette

Working stripe motif with 4.0mm (single-colour) & 4.5mm (stranded), each stripe is approximately 1.5in/4cm deep.
Some knitters work single-coloured and stranded stockinette at different gauges. Change needle sizes as needed to keep gauge throughout.I

approximate finished sizes:
1 (2, 3, 4) 5, 6, 7 (8, 9, 10)
chest circumference - 38.5 (41.5, 44.75, 48) 52.75, 56, 60.75 (64, 68.75, 72) in/97.5 (105.5, 113.5, 122) 134, 142, 154 (62.5, 174.5, 183) cm
to be worn with 4 - 12 in/10 - 30.5 cm of positive ease, see schematic for approximate finished measurements to find preferred fit

additional tools:
needle to weave in ends, st markers, st holders/waste yarn

Alternatively, as seen in the images, you may work additional length for the sleeves or the body in a single colour. You will need to adjust yarn amounts and/or colours used within patterning, as needed.