1 skein of Cascade Eco Plus in 0515, or any dark navy worsted yarn
1 skein of Cascade Eco in 8010, or any off-white worsted yarn
US8 (5.00 mm) circular needle
US8 (5.00 mm) DPNs
Tapestry needle
Stitch marker

Optional Supplies/h3>
If you choose to do intarsia in the round, you will also need bobbins or cards of some kind to wrap the yarn.


20 stitches per 4" (10.16 cm)

Finished Measurements

One size fits most adults.


Author's Note: One of the annoyances of this pattern is the colorwork. The pattern results in some really long loops across the back of your work if you try to work it stranded, which is just not good. There are a few options to get around this. One is to simply duplicate stitch all of the colorwork. Another is to try intarsia in the round, a technique which involves working on circular needles as if you are using straight needles but leaving a yarn over to be worked together with the first
stitch of the next row to maintain a circle on the needles. A third is just to pretend that long strands are not really that bad and do it anyway. I ended up doing the first and last three rows of the diamond charts in duplicate stitch (the points of the diamonds) and the middle section stranded. In other words, in sections where strands wouldn't have to stretch over about 5 stitches, I used a stranded method, and other than that I used duplicate stitch. Use whatever combination works best for you and your own skill level, and don't stress too much about what the "right" technique is. The pattern is written only to assume you use duplicate stitch for the zig-zag; adapt it as you need to for
the method(s) you select.

Cast on 112 stitches in off-white (MC) onto circular needles.

Join into a circle, being careful not to twist the stitches, and place marker.

K 1 row.

P 3 rows.

Brim chart
Work the black squares with the dark navy yarn (CC) and the white squares with MC.

Brim Chart

Knit straight in MC until the hat reaches 3.5" (8.89 cm) from the cast on edge.

Turn hat inside out so that you are now working on what was previously the purl side of the

YO by pulling the yarn around over the front and down the back of the right needle.

Knit to last stitch.

Knit the last stitch of the row together with the YO to close up the hole.

Knit straight until hat reaches 8" (20.32 cm) from the cast on edge.

Crown chart

Switch to DPNs as needed.
Crown chart

On C3, (k6, ssk) around.

On C6, follow the chart with this decrease pattern:
k8, k2tog, k1, ssk, (k9, k2tog, k1, ssk) to last stitch, k1.

On C11, (k4, ssk) around.

On C15, (k3, ssk) around.

On C18, (k2, ssk) around.

After the last row of the crown chart, break the yarn leaving a long tail.

Thread the yarn on a needle and run it through all remaining stitches.

Pull tight, run through again and pull tight.

Measure up about 2" (5.08 cm) from where you turned the hat inside out.

Zig-zag chart

Duplicate stitch the zig-zags in CC.
Duplicate stitch chart


Finish any other outstanding duplicate stitch you opted for.

Weave in ends.

Block hat, then when it was almost dry fold up the brim so that it gets the hint to stay in that nicely folded position.

Make a pom-pom out of mostly MC with some CC thrown in. There are various
ways to do it, but wrapping two white strands and a blue one at the same time seems to

Use the tail from the hat to attach the pom-pom to the top of the hat.

Final Product

Weasley Twins' Hat


Sarah Scott Brett's tutorial was taken with permission from

Finding Hogwarts

The Leaky Cauldron is not associated with J.K. Rowling, Warner Bros., or any of the individuals or companies associated with producing and publishing Harry Potter books and films.