Materials:

4.50 mm knitting needles

5.50 mm knitting needles

135 yds of worsted weight yarn (recommended yarn is Mary Maxim Natural Alpaca Tweed)

4.5mm Double pointed needle or additional circular needles (for creating the double brim)

Tapestry needle

Abbreviations:

K: knit

P: Purl

K2tog: Knit two together (back loop for this pattern)

M1: Make 1 stitch

Recommendations:

Cast on with a stretchy Cast On (my preferred is the German Twist!), this will make picking up stitches easier and will ensure the stretchiness you want in the brim.

While the 1×1 ribbing on the brim contributes to the vintage look of this hat, if you want to work the underside of the brim in stockinette for speed, that works too! (If so, knit rounds 1-18 in Stockinette)

The hat will look small at this gauge, but the pattern allows for LOTS of stretch (If you want to make it a bit larger, cast on additional stitches in increments of 8.)

Gauge:

In 1×1 ribbing with 4.5 needle, a 4×4 square is 24 sts by 27 rows.

Pattern:

CO 76 sts with the 4.5 mm needles

Round 1: Join in the Round with a K stitch, placing marker to indicate beginning of round. P and Continue by repeating K1, P1 around.

Rounds 2-40: *K1, P1. Repeat around.

Create the Double Brim:

Along the cast on edge, pick up 76 stitches with a second circular needle (4.5 mm or smaller)

Round 41: Fold up brim, and Knit corresponding stitches together around.

See photo below for reference.

Tip: Knit the cast on tail in as you go to avoid weaving the end.

Body:

Round 42: Using the 5.5 mm needles, K around.

Rounds 43 – 44: K around.

Round 45 (increase): K4, M1, *K8, M1* Repeat around. (86 sts)

Rounds 46-75: K around (86 sts)

Decrease and bind off:

Round 76: *K19, K2tog through the back loops* Repeat ** around

Round 77: *K18, K2tog through the back loops* Repeat ** around.

Round 78: *K17, K2tog through the back loops* Repeat ** around

Round 79: *K16, K2tog through the back loops* Repeat ** around

Round 80: *K15, K2tog through the back loops* Repeat ** around

Round 81: *K14, K2tog through the back loops* Repeat ** around

Round 82: *K13, K2tog through the back loops* Repeat ** around

Round 83: *K12, K2tog through the back loops* Repeat around

Round 84: *K11, K2tog through the back loops* Repeat around

Round 85: *K10, K2tog through the back loops* Repeat around.

Weave long end into the remaining live stitches and cinch closed. Sew the top of hat closed and weave in end.