The Single Pattern PDF version of this pullover (2026) is knit from the top down with finished chest measurements
36½(40½-44-48-52½)(57-61½-66½)”
92.5(103-112-122-133.5)(145-156 -169) cm
Shown in 2 lengths and choice of turtleneck or crewneck.

I used Kelbourne Woolens Germantown DK for both 2026 samples. The gauge is perfect and I really enjoyed knitting with it. I’m an affiliate partner with Kelbourne Woolens, so if you order through my link I earn a small commission (with no extra charge to you). LINK

YARN

Kelbourne Woolens Germantown DK (100% North American wool, 270 yds/ 247 meters / 100 grams):
Turtleneck / Long version
4(4-5-6-7)(7-8-8) skeins #340 sage
Crew neck / Cropped version
4(4-4-5-5)(6-6-7) skeins #340 sage
Yards & meters in photos.

Originally published in 2006 in the book Knitting Nature, (Stewart, Tabori & Chang 2006, Now Abrams) Link to web site.. In the book the instructions are written from the bottom up and is knit flat until the yoke. The book gives instructions for sizes 36½(40½-44-48-52½)“, 92.5(103-112-122-133.5) cm

From Knitting Nature:
I think of this cable pattern as the art deco version of a seashell.  The curves have been squared off and rounded angles replace sinuous lines.  Although stylized, the outline of a shell remains, growing form a point to accommodate the growing animal within.  When designing this pullover, I chose ease of knitting over geometric accuracy, limiting myself to two-over-two cables.  The decreases that shape the yoke and coincide with the narrowing of the seashell shape are placed in the reverse stockinette-stitch sections on either side of the shell motifs, so they don’t interfere with the cable.