Stretchy bind off

Taken from Lots of Yarn:

#1 K2tbl Bind Off with a stitch between:
Very stretchy, with the look of a chain stitch on the side it’s knit.

Knit 1, *Knit 1, insert tip of left hand needle from back to front through the front loops of both stitches on the right needle so as to knit them together through the back loops. Repeat from * to *.

Child sock, Toe-up, Short row toe

For my 8yo daughter, size 1 1/2 shoe ( I think).
Foot length 8"
Ankle bone to foot bottom 2.5"
Foot circumference (ankle circumference) 5.75" - 6"

7 sts/in size 2 needles

Wool, worsted weight? Maybe DK weight.

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I used the toe-up instructions (short-row toe) from the "5-stitch patterns" section.
CO 22 sts, and woven stitch pattern on p. 38.

7.25" from toe to beginning of short-row heel

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I had to get her to stick her foot into the sock as I was working on it, so I could be sure of the size. It seems to me that a child's foot has different proportions than an adult's foot -- she had to stretch really hard at the ankle of the sock to get it to go over her heel. This is one reason I kept the leg short. Maybe a sock made from a lighter-weight yarn would be stretchier.