MATERIALS 

Three-ply fingering yarn: 3 ounces gray; 1 ounce each black and white. 
Knitting needles: 1 pair No. 1; 1 set (4) double-pointed needles, No. 1. 

GAUGE 

9 stitches = 1 inch. 

With gray yarn and single-pointed needles, cast on 80 stitches. Work in ribbing of knit 1, purl 1 for 3 inches. Wind seven 15 inch lengths of white. Carrying gray and black, work in pattern as follows: 1st row: Attach a short length of white, knit 3 white, * knit 9 gray, attach another short length of white, knit 4 white. Repeat from * to within last 12 stitches, knit 9 gray, attach another short length of white, knit 3 white. 2nd row: Purl 3 white, * purl 9 gray, purl 4 white. Repeat from * to within last 12 stitches, purl 9 gray, purl 3 white. Repeat last 2 rows once more. 5th row: Knit 3 gray, * (knit 1 black, knit 1 gray) 4 times; knit 1 black, knit 4 gray. Repeat from * across, ending with (knit 1 black, knit 1 gray) 4 times; knit 1 black, knit 3 gray. 6th row: Purl 3 gray, * (purl 1 black, purl 1 gray) 4 times; purl 1 black, purl 4 gray. Repeat from * across, ending with (purl 1 black, purl 1 gray) 4 times; purl 1 black, purl 3 gray. Repeat last 2 rows 4 times more. Repeat last 14 rows 3 times more, then first 4 rows once. Break off gray. Next row: Slip first 20 stitches on a stitch holder, rejoin gray and black and work in pattern across next 40 stitches, turn. Slip remaining 20 stitches on another stitch holder. 

INSTEP

Continue in pattern on center 40 stitches for 55 rows more. Break off yarns and slip stitches on a stitch holder.

With wrong side of work facing, arrange the two sets of 20 stitches each from holders on 1 needle and attach main color. Next row: Purl 4, * purl 2 together, purl 8. Repeat from * to within last 6 stitches, purl 2 together, purl 4 (36 stitches).

HEEL 

Work in rows over the 36 heel stitches as follows: 1st row: * Slip 1, knit 1. Repeat from * across. 2nd row: Purl across. Repeat last 2 rows for 2 ½ inches, ending with a purl row.

TO SHAPE HEEL

1st row: Slip 1, knit 19, knit 2 together, knit 1, turn. 2nd row: Slip 1, purl 5, purl 2 together, purl 1, turn. 3rd row: Slip 1, knit 6, knit 2 together, knit 1, turn. 4th row: Slip 1, purl 7, purl 2 together, purl 1, turn. 5th row: Slip 1, knit 8, knit 2 together, knit 1, turn. 6th row: Slip 1, purl 9, purl 2 together, purl 1, turn. 7th row: Slip 1, knit 10, knit 2 together, knit 1, turn. 8th row: Slip 1, purl 11, purl 2 together, purl 1, turn. 9th row: Slip 1, knit 12, knit 2 together, knit 1, turn. 10th row: Slip 1, purl 13, purl 2 together, purl 1, turn. 11th row: Slip 1, knit 14, knit 2 together, knit 1, turn. 12th row: Slip 1, purl 15, purl 2 together, purl 1, turn. 13th row: Slip 1, knit 16, knit 2 together, knit 1, turn. 14th row: Slip 1, purl 17, purl 2 together, purl 1, turn. 15th row: Slip 1, knit 18, knit 2 together, turn. 16th row: Slip 1, purl 18, purl 2 together, (20 stitches). Turn. Next row: Knit across; then pick up and knit 20 stitches across one side of heel. Following row: Purl across, then pick up and purl 20 stitches across other side of heel. Next row: Knit 1, slip 1, knit 1, pass slip stitch over knit stitch, knit to within last 3 stitches, knit 2 together, knit 1. Following row: Purl across. Repeat last 2 rows until 36 stitches remain.

FOOT 

Work even in stockinette stitch (knit 1 row, purl 1 row) until foot measures the same as, instep, ending with a knit row.

Arrange all stitches of instep and foot on 3 double-pointed needles (1st needle = instep: 40 stitches; 2nd and 3rd needles: 18 stitches each). Work in rounds.

Next round: 1st needle: Knit 4, * knit 2 together, knit 8. Repeat from * to within, last 6 stitches, knit 2 together, knit 4. 2nd needle: Knit to end. 3rd needle: Knit to end. Continue in rounds without shaping until foot measures 2 ¼ inches less than desired length from heel.

TO SHAPE TOE

1st round: 1st needle: Knit 1, slip 1, knit 1, pass slip stitch over knit stitch, knit to within last 3 stitches, knit 2 together, knit 1. 2nd needle: Knit 1, slip 1, knit 1, pass slip stitch over knit stitch, knit to end. 3rd needle: Knit to within last 3 stitches, knit 2 together, knit 1.

2nd round: Knit around. Repeat last 2 rounds until 20 stitches remain. Break off, leaving an 18 inch end. Join stitches with Kitchener Stitch. Join leg and instep seams.