Improvised HDC Hat

I’ve made a lot of hats this season! I have tried several patterns that I’ve loved and a few that I haven’t (that’s just the way it goes) and found that I love, love, LOVE patterns with a ribbed brim. The sizing is so much more maker/user friendly! One of the results of a pattern that I didn’t like was that I had a perfectly good ribbed band and I didn’t want to waste all the work I put into making it (ribbing isn’t my favorite part of making a hat so I’m not going to frog one unless I absolutely have to!). A little trial and error and, ta-daaaa, the Improvised HDC Hat was created!

I hesitated to release a formal pattern for this because I do not intend to do the math to make sure the stitches work out properly in every round of the decrease but I’ve been asked so many times where to find the pattern for the hats that I’ve posted on Instagram that I decided to go for it anyway. So… if you want a simple but elegant hat with user-friendly sizing, that is easy as pie to make, and is endlessly customizable – give this a go!

Want to make your own? Here’s how!


  • approximately 110 – 180 yds of worsted (#4) yarn OR 72 – 145 yds of super bulky (#6) yarn (most yarns will work as the pattern is based on measurements not number of stitches!)
  • hook size recommended for your yarn AND one hook size smaller than recommended
  • yarn needle to weave in ends
  • optional: stitch marker, pom pom maker

Pattern written in US terms

Pattern notes: Because this pattern uses measurements (rather than a specific number of stitches) to achieve sizing, you can use almost any yarn. This also means that in the decrease rounds, you may not end with an even number of stitches. This is ok! No one will ever notice 😉 For bulky/chunky yarns – the pattern works best when you aim for the smaller end of the sizing scale. You may want to mark the ch1 stitch for every round of the body with a stitch marker to make it easier to identify when it is time to join the round.

Stitch Abbreviations:

yo = yarn over
Sl st = slip stitch
ch = chain
sc = single crochet
sc(BLO) = single crochet in the back loop only
hdc = half double crochet
HDC2TOG = half double crochet 2 stitches together

Special Stitches:

Half Double Crochet 2 Together (HDC2TOG): yo, insert your hook in the stitch, yo pull up a loop, yo insert your hook in the next stitch, yo pull up a loop, yo and pull through all 5 loops on the hook

Ribbed Brim:

Using one hook size smaller than the recommended hook size for your yarn –

For a thin or toddler/child width brim: ch8 (if using very bulky yarn ch5)

For a wide brim: ch12 (if using very bulky yarn ch9)

Row 1: sc(BLO) in the second stitch from the hook and all of the remaining chain stitches

Row 2: turn your work, ch1, sc(BLO) in every stitch

Repeat row 2 until you reach your desired size: Do Not Stretch The Brim When Measuring! Be sure to end on an even numbered row.

Toddler: 15-16 inches
Child: 16-17 inches
Teen/Adult: 18-19 inches
Large Adult: 19-20 inches

When you have reached your desired size, fold the ribbing strip in half and slip stitch the chain and last row together to form a band. Turn your band inside out (this helps hide the seam). Do not cut your yarn unless you are changing colors.


Using the recommended hook size for your yarn –

Round 1: ch1, sc in each stitch around the edge of the brim, Sl st to the ch to join the round

Round 2: ch1, hdc in the first stitch and every stitch around, Sl st to the ch to join the round

Repeat round 2 until you reach your desired size: Measurement includes the brim!

For a Messy Bun:

Toddler: 6 – 6.5 inches
Child: 6.5 – 7 inches
Teen/Adult: 7 – 7.5 inches
Large Adult: 7.5 – 8 inches

For a Regular Hat:

Toddler: 7 inches
Child: 8 inches
Teen/Adult: 8.5 inches
Large Adult: 8.5 inches

For a Slouchy Hat:

Toddler: 7 inches
Child: 7.5 – 8.5 inches
Teen/Adult: 8.5 – 9.5 inches
Large Adult: 9.5 – 10.5 inches


Round 1: ch1, *hdc, hdc, HDC2TOG* repeat * around (you may not end on a HDC2TOG – if you have an extra stitch left place a hdc there)

Round 2: repeat round 1

Round 3: ch1, *hdc, HDC2TOG* repeat * around (you may not end on a HDC2TOG – if you have an extra stitch left place a hdc there)  SEE NOTES BELOW FOR A MESSY BUN HAT AND LARGE ADULT HAT

*IF YOU MAKE A MESSY BUN HAT, on your last round – you can crochet around a hair tie to provide more structure for the top of the hat. Do not pull tight and close the top of the hat. Simply tie off and weave in your ends when you finish round 3.

*IF YOU MAKE A LARGE ADULT HAT, repeat round three a second time.

Tie off your yarn and leave a very long tail (I usually leave 7-8 inches just to be safe). Weave your tail through the top of the stitches of your last round and pull tight to close the top of the hat. Tie off and weave in your ends on the inside of the hat. Attach pom poms or leave it unadorned.

Variations to try: I have really enjoyed using a striped/variegated yarn for the brim of the hat and a solid matching color for the body of the hat. You could also do the opposite (solid brim, striped hat). This pattern also works well with striped sections throughout the body (change colors every set number of rows).

I would love to see your projects! If you share photos on social media, please tag me so I can see them! Instagram: @stitchmein_ or hashtags #stitchmein_ #stitchmein_makers   and   Facebook: @StitchMeInbyStephanie

Items created from any pattern I create may be used to create items for sale. Sale of the written pattern and copy and paste of any pattern I have written is never allowed – please provide credit for the pattern in listings for sale via a direct link to my blog.

Happy crocheting!



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