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Mariner’s Hat Knitting Pattern – Free Knit Beanie (4 Sizes)

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This mariner’s hat knitting pattern will work up into the perfect ribbed beanie!

The hat is stretchy as it is knit all in the rib stitch, so it will fit a variety of head sizes.

You can make it with a turned-up cuff or wear it with a bit more slouch.

Scroll down to view the free pattern, or grab your printer-friendly, ad-free PDF here.

Mariners-Hat-Pattern

Before You Get Started

  • The hat pattern is easy to make, designed for advanced beginner knitters.
  • Using knit and purl stitches, you will create 2×2 ribbing, knit in the round.
  • Choose a soft medium (4) yarn for great stretch and stitch definition.
  • You can turn up the cuff for the classic mariner’s hat look.
  • This knitted hat would take you around an hour or two to make (depending on how fast you knit!) and will be a cozy addition to the colder weather.
Mariners hat knitting pattern free knit beanie

The Mariner’s Hat Design Inspiration

The style of this hat was inspired by a traditional British seaman’s cap.

Also known as a ribbed watchman’s hat, this design features a snug fit and a brim that turns up to keep the ears warm.

Great to make and gift, this hat is super easy to knit and will be well-received by loved ones, friends, and charities.

ribbed mariners hat pattern knit with grey yarn

A note about the yarn I used…

I made the stretchy hat using Classic Alize Lanagold yarn in dark grey and knit on size 5.5 mm (US 9) 16″ circular needles.

The yarn I used is a medium-weight yarn (04), so you can substitute this with any worsted, Aran, or 10-ply yarn.

This was knit up quite quickly and used only one skein of yarn.

man wearing a knitted mariners hat

Mariner’s Hat Knitting Pattern

Grab your inexpensive, ad-free, PDF printable pattern in my shop here.

Pattern Notes

Skill Level – Easy (advanced beginner)

The Mariner’s cap knits up quickly, and the simple design makes for a relaxing and enjoyable knit.

Copyright info

  • Please do not copy, sell, redistribute, or republish this pattern. 
  • If you wish to share this pattern, link to the pattern page only.
  • You may sell items produced using this pattern.
  • Do NOT use the copyrighted photos for your product listing.
  • For the copyright T&C, please read my Terms of Use.

Size Information

You can make this hat in a wide variety of head sizes.

  • Baby, Toddler, Child, Adult (average adult head)
  • Adult Hat lying flat and un stretched – Height = 12 inches / width = 6 inches
  • Child Hat lying flat and un stretched – Height = 11 inches / width = 5.5 inches
  • Toddler Hat lying flat and un stretched – Height = 10.5 inches / width = 5 inches
  • Baby Hat lying flat and un stretched – Height = 10 inches / width = 4.5 inches

Gauge – 14 sts x 20 rounds = 4×4″/10×10 cm in 2×2 ribbing.

Mariner hat pattern

The Supplies You Need

Yarn

Needles

Notions

easy mens mariner hat pattern

Abbreviations

Knitting Abbreviations And Terms (US And UK)

  • CO = Cast on
  • Cont = Continue(ing)
  • K = Knit
  • K2tog = Knit the next 2 stitches together
  • P = Purl
  • PM = Place marker
  • P2tog = Purl two stitches together
  • Rem = Remaining
  • Rep = Repeat
  • Rnd(s) = Round(s)
  • St(s) = Stitch(es)
  • 2×2 ribbing = K2, P2 – rep to the end of the round.
Mariner hat pattern

Pattern Instructions

CO Baby – 56 sts / Toddler – 64 sts / Child – 72 sts / Adult – 80 sts, join in the round and pm, being careful not to twist the sts.

Round 1: K2, P2 (2 x 2 rib)to the end of the round.

Rep round 1 – K2, P2 every round until hat measures – Baby – 9 inches / Toddler – 10 inches / Child – 10.5 inches / Adult – 11 inches from the co edge.

Shape crown (decrease):

  1. K2, P2tog, to end of rnd
  2. K2tog, P1, to end of rnd
  3. K1, P1, to end of rnd
  4. K2tog, to end of rnd
  5. K2tog, to end of rnd

Cut yarn and sew through the rem sts and pull tight.

Secure and weave in any loose ends.

Grab The Ad-Free Printable PDF Pattern Here

mariners cap in corfu Greece

Could you share your work with us…

I love seeing your finished projects on social media.

If you enjoyed making the hat, I’d love to see yours on Instagram, tag me @handylittleme.

If you are on Facebook, check out the handylittleme Facebook page and share a photo.  

I’d love to see your work.

Happy Knitting!

mens mariner hat with ribbing

More Free Men’s Knit Hat Patterns

If you would like to make more knitted items/hats for men, please take a look at the other patterns in the men’s knitting patterns library.

There are also hat patterns for women, men, babies, and kids in the hat pattern library. – Hat Patterns

You may also like these free patterns for men’s hats:

mariners hat pattern with ribbing

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20 Comments

  1. I would like to knit this but a little nervous because it doesn’t require double points. When decreasing do you really keep it on the circular needles with no problem?

    1. Hello, yes, it was fine when I decreased on the circulars, I didn’t have any issues at all. I mean you could change to DPN’s when you get to that stage if you wish. Thank you for visiting and taking a look around 🙂 Happy Knitting!

  2. So excited to knit this for my brother-in-law, but I only have US 8 sized needles. How many should I cast on to get the right size? I am using worsted weight yarn as well.

    Thank you!

    1. Hello, if you cast on 84 that should still work out ok – to go down a size to the US 8 needles. Thank you for visiting and taking a look around 🙂 Happy Knitting!

    1. Hello Brooke, If you are going to use a medium 4 weight yarn – you would be better off using 4.5mm – 5.5mm (US 7 to 9) needles. The hat was knit using medium yarn and size 5.5mm (US 9) needles. If you want to use 8mm (US 11) needles – you will need a Bulky (05) weight yarn. The pattern would need to be adjusted for that, as there would be too many stitches cast on – making the hat really huge! Thanks for visiting! 🙂

  3. Hi, I’m following this pattern and the hat seems to have a very small diameter. I’m about 8 rows in and was wondering if this is normal/Will it stretch or should I start over and cast on more stitches?

    1. Hello, are you using the recommended needle size and yarn weight? If yes then it should be fine, it stretches because it is knit in ribbing. It has a comfortable fit – the ribbing allows for that. I hope that helps! 🙂

  4. If I wanted to make it a larger diameter (boyfriend has a big head and long thick hair) how would i adjust to cast on? Just make sure it’s an even number? I’m a new knitter 😊

    1. Hello Anastasia, yes, if you adjust the number of sts you cast on for the hat, keep an even number and you should be fine. Then you just need to adjust the decreases for the crown also. 🙂

  5. Hi! I want to knit a few of these for our local cancer center. If I have bulky yarn and size 11 needles, how many stitches would I need to cast on? I think if I have that starting point I can adapt the pattern myself….

  6. Hi Louise! I am new at knitting and just completed matching beanies for my daughter and grandson using your mariner beanie pattern. I’m getting ready to start matching beanies for my daughter and SIL but she’s picked a super bulky 6 yarn. Can you offer me some guidance? The yarn calls for 13 (9mm)…can you help me adjust? I love using the no.10, 16 in circular, but thinking that’s not going to work.
    I looked through MANY beanie patterns before finding yours and was so glad I did! Thank you in advance!

    1. Hello Debbie,
      I’m so happy you enjoyed the pattern!
      You can search all of my hat patterns in the main menu – women’s hats and headbands and in men’s patterns.
      There are quite a few choices that use super bulky yarn.
      Happy knitting!
      Louise

  7. I just finished the mariner’s hat for my husband in dark gray color. It has a modern style, he like it ! Many thanks for the pattern. Chris

  8. With the Mariners hat it suggest to complete a gauge swatch by casting on 14 stitches. Is it correct to do 2 x 2 ribbing with 14 stitches? Does this work?

    1. Hi Maddison,

      I think you were looking at the gauge measurement – 14 is the number of stitches in 20 rounds measured in 4×4 inches.

      You can learn more about gauge here – https://www.handylittleme.com/how-to-measure-gauge-in-knitting/

      I would recommend casting on 16 stitches for a 2×2 rib swatch.

      The stitch pattern is a multiple of 4, but ideally you want to end with a P2.

      Knit 3–4″ (7.5–10 cm), lightly block, and measure across the center.

      If your gauge doesn’t match the pattern, change needle size and try again.

      Because the hat is knit in the round, note that round gauge can be a touch tighter.

      I hope that helps!

      Louise