Siri Herringbone Hat by Sylwia Kawczyńska

Siri Herringbone Hat

November 2023
Worsted (9 wpi) ?
20 stitches and 12 rows = 4 inches
in herringbone crochet stitch pattern
3.5 mm (E)
4.0 mm (G)
5.0 mm (H)
210 - 241 yards (192 - 220 m)
Adjustable: 18” (46cm), brim circumference, unstretched. 9.5” (24cm) height, brim folded in half.
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This pattern is available for €4.00 EUR
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You can find the free version of this pattern on my blog HERE. This downloadable PDF contains the full pattern in one ad-free, printable file.

Meet the Siri Herringbone Hat – a cozy and stylish crochet project perfect for the upcoming fall season. This crochet pattern focuses on the herringbone stitch, creating a cool texture that adds a special touch to your handmade hat.

What makes the Siri Hat special is that you can make it just right for you. You can easily change the size by adjusting the starting chains, so it fits you perfectly. You can also tweak the brim size by adding or removing rows, giving you a hat that’s uniquely yours. It’s not just a hat; it’s your own fashion statement.

Made with worsted weight merino yarn in a pretty mix of colors, this hat is not only warm but also a stylish addition to your wardrobe. The merino yarn keeps you cozy, and a big pompom in a different color adds a fun twist to the look.

The herringbone stitch, done with single crochet in a special way, creates a cool texture that’s both trendy and easy to wear. The brim is neatly folded in half, giving your hat a neat finish.

The pattern uses US crochet terminology.
You can also find the video tutorial on my blog or on my YouTube channel.

Materials & Tools:
1. Yarn Requirements:
Worsted weight yarn in 1 color, approx. 215m.
Suggested Yarn: Malabrigo Yarn Rios 100g = 192m, 100% Merino Wool.
Plus some yarn for a pom pom.

  1. Hook size 5mm, 4mm and 3.5mm. Adjust hook size if necessary to obtain correct gauge.
  2. Tapestry needle (to weave and hide yarn ends).
  3. Scissors.
  4. Stitch marker.

Level: Intermediate – herringbone crochet stitch.

Gauge after blocking:
20sts x 12rows in 4”/10cm in Herringbone Crochet Stitch using 5mm crochet hook.
If necessary, adjust hook size to obtain the correct gauge.
Before you measure, please take the time to block your swatch in the same manner that you will block your hat.

Size after blocking (adjustable):
18” (46cm), brim circumference, unstretched.
9.5” (24cm) height, brim folded in half.


  1. The hat is worked lengthways which means that the foundation chain equals the height of the hat.
  2. The height of the hat can be adjusted by simply making more or less starting chains.
  3. The brim circumference can be adjusted by simply working more or less rows.
  4. The pattern incorporates three different crochet hook sizes in each row. This variation in hook sizes is essential for achieving the perfect fit for your hat. Make sure to switch between these hooks as indicated in the pattern for the desired results.

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