Here is the knitting pattern for these cozy slippers in a medium adult size. I didn't design the slippers, this is a classic pattern that has been around for ages. The slippers are knit on straight needles with two strands of yarn and seamed at the heel and front.
Supplies:
Two skeins of worsted weight yarn
Size US 9 needles
Tapestry needle for seams
Abbreviations:
K2TOG: Knit two stitches together
SKP: Slip one stitch from the left needle to the right needle, knit the next stitch, and then pass the slipped stitch over the knit stitch and let it drop.
Gauge: 8 rows of garter stitch with two strands of yarn = 1"
To knit the slippers:
With two strands of yarn, cast on 29 stitches.
Row 1: K9, P1, K9, P1, K9 (this is the wrong side).
Row 2: Knit.
Repeat these two rows until the piece is 6 inches long or 2 inches shorter than your foot, ending on a wrong side row.
Begin the toe ribbing:
Row 1: P1,*K1, P1, repeat from *.
Row 2: K1, *P1, K1, repeat from *.
Repeat until the ribbing is 2 inches long, ending on a wrong side row.
Shape the toe:
Row 1: Rib 7 stitches, SKP, K1, K2TOG, Rib 5, SKP, K1, K2TOG. Rib to end of row.
Row 2: Rib 7 stitches, P3, Rib 5, P3. Rib to end of row.
Row 3: Rib 6 stitches, K2TOG, K1, SKP, Rib 3, K2TOG, K1, SKP. Rib to end of row. You will have 21 stitches.
Finish the slippers:
Cut the yarn with a 24 inch tail. Thread the tapestry needle and slip it through the stitches once, and then do it again in the same direction. Pull the stitches as tightly together as possible to close the toe of the slipper.
Seam the front portion of the slipper one inch in to the garter stitch section.
Seam the heel until you reach the purl stitched edge of the sole. Sew an overcast stitch all around the edge and pull tightly to close the heel. Secure the yarn with a few stitches and weave in end.