Herringbone Slouchy Beanie Crochet Pattern

I’m joining Christine from Sweet Potato 3 for the third year in a row as part of her seventh annual Crochet Cancer Challenge. My design for this year is the Herringbone Slouchy Beanie, a cozy pom pom hat available in nine sizes from newborn through adult large.

This post contains affiliate links. I may receive compensation (at no added cost to you) if you make a purchase using these links. Materials for this project were generously provided by Lion Brand and Nelsonwood.

If you’ve been following my blog for a while, you may know that my maternal grandmother taught me to crochet. In 2007, she was diagnosed with pancreatic cancer. Losing her was devastating and I still miss her so much. When Christine inviting me to join her seventh annual Crochet Cancer Challenge, I chose to make a design with purple yarn. Not because it’s pretty (which it is!) and because it’s associated with royalty (which it also is!), but because it’s the awareness color for pancreatic cancer.

By the way, during my grandmother’s illness, the Pancreatic Cancer Action Network helped my family get the information we needed. I hope you never have to use their services, but I’m glad they are available to help.

Now, truth be told I cannot imagine my grandmother wearing a slouchy hat but I personally do love to wear them and they are more comfortable for wearing a hat indoors. Since many people participating in the Crochet Cancer Challenge will be donating their hats to cancer care facilities or other organizations, I wanted to design a hat that was stylish and comfortable.

A charity that I’ve worked closely with in the past is Knots of Love. They have distributed over half a million (!) hats to people experiencing traumatic hair loss and blankets to neonatal intensive care units since 2007. They work with over 550 cancer treatment centers, clinics, and health care organizations across the United States. And, they have a list of yarns you are required to use to ensure your hat is actually soft and comfortable for someone who has no hair. My favorite yarn on that list is Lion Brand Heartland, and they happen to have a stunning purple colorway called Hot Springs. I decided to pair it with Katmei, a silver-y gray. You could make your version in one color, or even use a third color for the pom pom.

If you’ve never done the herringbone double crochet, or crocheted in the back loop, or cinched a slouchy hat closed, don’t worry! I have linked up tutorials in the pattern to help you out.

Scroll down to get the pattern or learn more about the Crochet Cancer Challenge and how you can download a crochet pattern in exchange for a pledge to donate it.

Herringbone Slouchy Beanie

Slouchy Beanie Crochet Pattern by Underground Crafter

This variation on the double crochet stitch creates a twill texture. This hat was designed to meet the donation requirements for Knots of Love, an organization that distributes handmade hats to people experiencing traumatic hair loss.

Finished Sizes

  • Newborn (0-3 Months, 3-6 Months, 6-12 Months, Toddler, Child, Teen/Adult Small, Adult Medium, Adult Large). Photographed sample is Teen/Adult Small. Height measurements do not include pom pom.
    • Newborn: 12” (30.5 cm) hat circumference x 6.25” (16 cm) height.
    • 0-3 Months: 15” (38 cm) hat circumference x 7.25” (18.5 cm) height.
    • 3-6 Months: 16” (40.5 cm) hat circumference x 7.5” (19 cm) height.
    • 6-12 Months: 17” (43 cm) hat circumference x 8” (20.5 cm) height.
    • Toddler: 18” (46 cm) hat circumference x 8.25” (21 cm) height.
    • Child: 19” (48 cm) hat circumference x 8.75” (22 cm) height.
    • Teen/Adult Small: 21” (53.5 cm) hat circumference x 9.5” (24 cm) height.
    • Adult Medium: 22” (56 cm) hat circumference x 10” (25.5 cm) height.
    • Adult Large: 23” (58.5 cm) hat circumference x 10.25” (26 cm) height.


  • Lion Brand Heartland yarn (100% acrylic, 5 oz/142 g/251 yd/230 m) – 1 skein each in 147 Hot Springs (CA) and 151 Katmai (CB), or approximately 75 yd (110 yd, 120 yd, 140 yd, 150 yd, 170 yd, 200 yd, 220 yd, 240 yd)/69 m (100.5 m, 110 m, 128 m, 137 m, 155.5 m, 183 m, 201 m, 219.5 m) in CA and 40 yd (55 yd, 60 yd, 70 yd, 75 yd, 85 yd, 100 yd, 110 yd, 120 yd)/36.5 m (50 m, 55 m, 64 m, 68.5 m, 78 m, 91.5 m, 100.5 m, 110 m) in any medium weight yarn.
  • Nelsonwood US Size H-8/5 mm crochet hook, or size needed to obtain gauge.
  • Nelsonwood US Size I-9/5.5 mm crochet hook, or size needed to obtain gauge.
  • Yarn needle.
  • Clover Extra Large Pom Pom Maker (optional).


  • 10 scBL = 2.25” (6 cm) in pattern for Hat Band using smaller hook.
  • 12 HBdc = 4” (10 cm) using larger hook.
  • For best fit, always check your gauge.

If you make your own Herringbone Slouchy Beanie, I’d love to see it! Share your progress and questions by tagging me on Facebook as @Underground Crafter, Instragram as @ucrafter, or Twitter as @ucrafter. You can also share a picture in the Underground Crafters Facebook group. Sign up for my weekly newsletter and get a coupon code for your choice of one of my premium patterns and other subscriber goodies. Plus, you’ll never miss one of my free patterns again!

As part of the Crochet Cancer Challenge, this pattern was available as a free PDF download through 11:59 p.m. Eastern on Sunday, October 4, 2020.

This pattern is available as a free download exclusively for Underground Crafter newsletter subscribers. Subscribers can login here.

Need more information about the Crochet Cancer Challenge with Sweet Potato 3?

  • Information explaining what the Crochet Cancer Challenge is, click HERE.
  • What type of hat should I make? What Sizes? Where do I get the patterns? Click HERE.
  • Yarn Recommendations to use for the hats, click HERE.
  • Where should I donate my hats, click HERE.
  • A fun start early project you can add to your hats, click HERE.
  • Challenge others to join and get tags you can print for your hats, click HERE.

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