Comfy Socks Crochet Pattern Using Back Loop Slip Stitches

Create your coziest pair of crochet socks with this easy-to-follow pattern featuring slip stitches worked in the back loop only for a flexible and snug fit. Perfect for women’s sizes 36–39, this design combines warmth and stretch using two strands of soft alpaca or wool yarn.

Crochet Socks

You can easily adapt the pattern for men or baby sizes, making it a versatile project for the whole family. The clever short-row heel and seamless finish ensure comfort and a professional look with every pair.

Materials

Yarn: Alpaca/Wool blend yarn (two strands held together)
Hook: 5 mm (main sock) and 4 mm (cuff and ankle)
Other: Stitch markers, yarn needle

1. The Starting Chain (Cuff and Leg)

Chain 70 stitches.
With 4 mm hook, work 6 slip stitches down from the second chain.
Switch to 5 mm hook and continue slip stitches to the end of the chain.
Count 17 stitches from the top, place a marker on the 18th stitch for the heel section.

2. Shaping the Heel (Decreasing)

Chain 1, turn, and work slip stitch BLO up to the marker.
Chain 1, turn, work 15 slip stitches BLO down.
Add 2 slip stitches at the bottom.
Turn, skip 2, work 13 slip stitches BLO up, chain 1, turn.
Work 13 slip stitches BLO down, then add 2 slip stitches.
Continue this pattern, leaving 2 unworked each time, until only 5 stitches remain at the top.

3. Closing the Heel (Increasing)

Chain 1, turn, work 5 slip stitches BLO down, add 2 slip stitches.
Turn, work 5 slip stitches BLO up.
Reconnect steps by making 2 slip stitches through each “step” until reaching the top.

Continue slip stitching BLO up to the end.

4. Shaping the Foot and Toe (Width)

Chain 1, turn. With 4 mm hook, make 6 slip stitches BLO for the ankle.
Switch to 5 mm hook, work slip stitches BLO, stopping 4 stitches before the end. Chain 1, turn.
Work one long row up to the top.
Alternate short rows and long rows, repeating until you have 20 braids/ridges.

5. Shaping the Toe (Second Heel Section)

Count 33 stitches from the top and place a marker.
Work slip stitches BLO up to the marker, then make 5 slip stitches BLO up, chain 1, turn.
Work 5 slip stitches down, chain 1, turn.
Increase by adding 2 slip stitches every “up” row until you reach 15 stitches.
Work 15 slip stitches down and close the steps as before.
Finish with one short row down and one final long row up.

6. Finishing and Seaming

Fold the sock in half and align edges.
Slip stitch through both sides, using front loop on one side and back loop on the other.
Chain 1, cut yarn, and weave in ends.
Cinch the toe closed by weaving through the tip and pulling tight.
Turn the sock right side out.