I’ve been showing these a lot in my videos recently and have had many questions about how to do them. Basically, it’s a single crochet hat with 3-4 strands of yarn held together. Use a hook you’re comfortable with. (I use a “P” 12mm with 4 strands of worsted weight and adjust my hook size based on the overall weight/feel of all the strands held together.)
Not enough information for you? Maybe this video will help:
Here’s a written pattern to use as a guide:
Round 1: ch 2, 6sc in the 2nd ch from hook, do not join, work in continuous/spiral (6sc)
Round 2: 2 sc in each sc around. (12 sc)
Round 3: *sc in next sc, 2sc in next sc* repeat from * to * around. (18 sc)
Round 4: *sc in the next 2 sc, 2sc in the next sc* repeat from * to * around. (24 sc)
Round 5: *sc in the next 3 sc, 2sc in the next sc* repeat from * to * around. (30 sc)
STOP and measure your Flat Circle Diameter and refer to the chart below for sizing! If you need it larger, continue your increase rounds (increasing by 1 sc in each *repeat group* as you did above).
Subsequent Rounds: 1 sc in each stitch until you are approximately .5″ from the desired Hat Height.
Slip Stitch about 6 stitches to even out the bottom edge of the hat.
Last Round: sc blo ; fasten off; sew in ends.
Note that the chart I refer to in this video is not available in its original form so I’ve updated it (and made a few alterations) and you can find it here: Hat Sizing Charts.