I've just finished this little jumper. And I think it's the easiest, quickest item of baby-wear I've ever made. I've got a feeling that it's going to become my go-to pattern for every time a new baby arrives in my circle.
This should fit a little one of 6 months to a year old. It measures 24 cm/ 9.5 " from armpit to armpit, and takes 3, 50g/ 100m balls of my Costa Brava Knitting double knitting variegated bamboo yarn in Cinnabar & Spice. In stocking stitch my tension comes out as 22 stitches x 28 rows for 10cm².
It's knit in the round up to the armpits, and then the front and back are knit separately. The stitches for the arms are picked up from the armholes, and knit from the armhole down to the wrist. And it's all worked in stocking stitch for ease and speed. The wonderful variegated yarn does its stuff to create a series of spontaneous stripes that provides plenty of interest without the need for any fancy stitch-work.
Just read on for the pattern: