Free Pattern: Knit Starburst Heel Panel Socks in Denim & Cream

Free Pattern: Knit Starburst Heel Panel Socks in Denim & Cream

Introduction

These Starburst Heel Panel Socks are the perfect first sock project for anyone who has just learned to knit and purl. They are worked from the top down (bottom-up construction) as simple tubes, so there is no complicated shaping to memorize — just a cozy ribbed cuff, a smooth stockinette leg, and a classic heel that you will be proud of. The self-striping yarn does all the colorwork for you, creating neat denim blue and cream stripes without a single color change. Once the sock is finished, a tiny cream five-point star is added on the solid denim heel panel with duplicate stitch, giving a crisp mid-century celestial accent. The finished socks are soft, fine, and stretchy, with a smooth rounded toe and a snug ribbed top that stays put all day.

Materials Needed

• Yarn: Self-striping sock yarn, fingering weight (approx. 400 m / 437 yd per 100 g skein), in a denim blue and cream striping colorway. You will use approx. 70–80 g for a women's medium pair.
• Contrast yarn: A small amount (about 2–3 m) of solid cream fingering-weight yarn for the duplicate-stitch star.
• Needles: Set of 5 double-pointed knitting needles, US 1 (2.25 mm), or the size needed to obtain gauge.
• Tapestry needle (a large-eyed, blunt-tipped needle) for duplicate stitch and grafting.
• Stitch markers (at least 1, ideally 4) to mark the beginning of the round.
• Scissors for cutting yarn.
• Finished size: Women's Medium — fits foot circumference approx. 8 in / 20 cm. Foot length is adjustable (knit to your own foot length before the toe).

Abbreviations and Beginner Glossary

• st / sts — stitch / stitches (one loop on your needle).
• K — knit stitch (insert the right needle into the front of the stitch from left to right, wrap yarn around, pull a loop through, slide the old stitch off).
• P — purl stitch (insert the right needle into the front of the stitch from right to left, wrap yarn around, pull a loop through the back, slide the old stitch off).
• K2, P2 — knit 2 stitches, then purl 2 stitches.
• Rnd / Rnds — round / rounds (one complete circle of knitting when working in the round).
• RS / WS — right side (the outside, public face of the fabric) / wrong side (the inside).
• Slip 1 purlwise — move one stitch from the left needle to the right needle without knitting it, as if you were going to purl it.
• With yarn in back / front — hold the working yarn behind (or in front of) your work before slipping a stitch.
• K2tog — knit 2 stitches together (insert needle through 2 stitches at once and knit them as one; this decreases by 1 stitch and leans right).
• Ssk — slip, slip, knit (slip 1 stitch knitwise, slip the next stitch knitwise, then knit both slipped stitches together through the back loops; this decreases by 1 stitch and leans left).
• P2tog — purl 2 stitches together (decreases by 1 stitch on the wrong side).
• Pick up and knit — use a needle to catch the edge loops along a finished edge and knit them, creating new stitches.
• Gusset — the triangular section at the side of the heel that narrows the sock back to its original stitch count.
• Kitchener stitch (grafting) — a seaming method that joins two sets of live stitches invisibly, so the toe looks seamless.
• Duplicate stitch — embroidering over an existing knit stitch with a contrasting yarn, following the V shape of the stitch, to add color after knitting.
• Long-tail cast-on — a stretchy cast-on where you make a slip knot, hold the yarn in a "sling" over your thumb and index finger, and dip the needle to create each stitch.

Gauge

32 stitches and 44 rounds = 4 in / 10 cm in stockinette stitch worked in the round.

Why gauge matters: Gauge is how many stitches and rows fit into one inch of fabric. If your stitches are bigger than the pattern's, your sock will be too loose; if smaller, it will be too tight. Always knit a small test square first.

How to make a gauge swatch: Cast on about 40 stitches with your sock yarn and needles. Knit in stockinette (knit every round) for about 5 in / 12 cm. Lay the swatch flat, place a ruler, and count how many stitches fit across 4 in / 10 cm and how many rounds fit in 4 in / 10 cm. If you have more stitches than 32, go up a needle size; if fewer, go down. Wash and dry the swatch before measuring, because sock yarn can change after washing.

Beginner Tips Before You Start

• Check your stripe sequence first. Wind the skein and look at the color repeat before you cast on. You want a solid denim blue section to land at the heel. If needed, start the sock at a different point in the color repeat.
• Use stitch markers. Place a marker at the beginning of the round so you always know where you are. It is easy to lose your place when knitting in the round.
• Do not pull the yarn too tight. Especially when slipping stitches on the heel flap and when picking up gusset stitches — tight yarn makes the sock hard to pull on. Keep it relaxed and even.
• Count your stitches after every decrease round. The stitch counts in parentheses tell you exactly what you should have. If you are off, fix it right away.
• Try the sock on as you go. Slip the live stitches onto scrap yarn or a spare needle and check the fit around your foot before you start the toe.
• Keep the cream star yarn loose. When you duplicate stitch the star, do not pull the cream yarn tight or the heel panel will pucker.

Step-by-Step Instructions

Cuff (Top Edge)

With the self-striping yarn, cast on 64 sts using the long-tail cast-on. Distribute 16 sts onto each of 4 double-pointed needles. Join to work in the round, being careful not to twist the stitches. Place a marker at the beginning of the round.

Rnds 1–12: *K2, p2; repeat from * around (2x2 ribbing). (64 sts)

Leg

Work in stockinette stitch (knit every round) until the leg measures 6 in / 15 cm from the cast-on edge, or your desired leg length. Let the self-striping yarn create the stripes as it comes — do not cut or rearrange the yarn.

Heel Flap (Solid Denim Panel)

Note: Arrange your yarn so this section falls on a solid denim blue stripe. If your stripe sequence differs, simply work the heel flap in the denim sections as they appear; the panel should read as a solid denim block.

Set-up: Knit 16 sts (needle 1). Slip the next 32 sts onto one needle to work the heel flap back and forth; these 32 sts form the heel. The remaining 32 sts (16 on each of two needles) are held for the instep.

Row 1 (RS): *Slip 1 purlwise with yarn in back, k1; repeat from * across. Turn.

Row 2 (WS): Slip 1 purlwise with yarn in front, purl across. Turn.

Rows 3–24: Repeat Rows 1–2 eleven more times (24 rows total), ending with a WS row. The heel flap measures approx. 2.25 in / 5.5 cm. (32 sts)

Heel Turn

Row 1 (RS): Slip 1, k17, ssk, k1, turn.

Row 2 (WS): Slip 1, p5, p2tog, p1, turn.

Row 3: Slip 1, knit to 1 st before the gap, ssk, k1, turn.

Row 4: Slip 1, purl to 1 st before the gap, p2tog, p1, turn.

Repeat Rows 3–4 until all heel stitches have been worked, ending with a RS row. (18 sts remain on the heel needle)

Gusset

With the heel needle, knit across the 18 heel sts. With a new needle, pick up and knit 12 sts along the left edge of the heel flap. With another needle, knit across the 32 held instep sts. With a fourth needle, pick up and knit 12 sts along the right edge of the heel flap, then knit 9 sts from the heel needle. The beginning of the round is now at the center of the heel. (74 sts total: 18 sole sts, 32 instep sts, 24 gusset sts)

Rnd 1 (decrease round): Knit to last 3 sts on needle 1, k2tog, k1; knit across instep sts; on needle 4, k1, ssk, knit to end. (72 sts)

Rnd 2: Knit all sts. (72 sts)

Repeat Rnds 1–2 until 64 sts remain (16 sts on each needle).

Foot

Work in stockinette stitch in the round, continuing the self-striping yarn, until the foot measures 7.5 in / 19 cm from the back of the heel, or 2 in / 5 cm less than your desired finished foot length. (64 sts)

Toe

Rnd 1: Knit to last 3 sts on needle 1, k2tog, k1; on needle 2, k1, ssk, knit to end; on needle 3, knit to last 3 sts, k2tog, k1; on needle 4, k1, ssk, knit to end. (60 sts)

Rnd 2: Knit all sts. (60 sts)

Repeat Rnds 1–2 until 24 sts remain (6 sts per needle).

Knit across needle 1 to begin grafting. Graft the remaining sts together using Kitchener stitch. Weave in ends.

Duplicate-Stitch Star (Center of Solid Denim Heel Panel)

Using solid cream yarn and a tapestry needle, work a small 5-point star in duplicate stitch centered on the solid denim heel panel. The star measures approx. 1.25 in / 3 cm across. Each symbol below equals 1 stitch; work from bottom to top.

Row 1: center stitch only. (1 st)

Row 2: 3 stitches (center plus one on each side). (3 sts)

Row 3: 5 stitches. (5 sts)

Row 4: 3 stitches (center plus one on each side). (3 sts)

Row 5: 1 stitch at center, plus single stitches offset one stitch outward on each side to form the star points. (3 sts)

Work the star by following the chart, duplicating each stitch over the knit stitch below it. Keep the cream yarn relaxed so the heel panel does not pucker. Fasten off and weave in ends on the wrong side.

Assembly and Finishing

Weaving in ends: Thread each yarn tail onto your tapestry needle and weave it through the wrong side of the fabric for about 1 in / 2.5 cm, going back and forth through a few stitches. Trim the tail close to the fabric.

Grafting the toe: With the remaining 24 sts divided evenly on two needles (12 and 12), hold the needles parallel with the wrong sides facing out. Thread a tapestry needle with yarn and work Kitchener stitch: bring the needle through the first stitch on the front needle as if to knit and slip it off, then through the next stitch on the front needle as if to purl and leave it on; repeat on the back needle (as if to purl and slip off, then as if to knit and leave on). Continue until all stitches are joined, then weave in the end.

Blocking: Mist the finished socks lightly with water and shape them flat, smoothing the ribbing without stretching it. Let them air-dry completely. Do not hang them, as this can stretch the fabric.

Make the second sock to match, placing the star on the heel panel in the same position.

Pro Tips and Variations

• Change the star color: Use a soft gold, rust, or charcoal instead of cream for a different mid-century palette. Any fingering-weight yarn works for the duplicate stitch.
• Adjust the size: For a smaller or larger sock, add or remove 8 stitches (2 stitches per needle) to the cast-on. This changes the circumference by about 1 in / 2.5 cm. Keep the heel at half the total stitch count.
• Substitute yarn: Any fingering-weight sock yarn with a little nylon content will work. If you use a solid color, the heel panel will not stand out — add the star in a contrasting color to keep the design.
• Make it a longer sock: Continue the leg in stockinette before the heel flap for a knee-high version, or stop earlier for an ankle sock. Just remember to adjust your yarn quantity.