This is a simple pattern for a winter hat. For a thick fabric, use bulky weight yarn or worsted weight double stranded. For a thinner fabric, use worsted weight single stranded.
3.5 oz skein of bulky or worsted weight yarn
straight needles, US 10 or size needed for gauge
GAUGE: In ribbing, 4 sts = 1″, 5 rows = 1″
Cast on 72 stitches and work in ribbing for 7.75 inches
Row 1 (decrease row): k 10, k2 together, *place marker, k10, k2 together; repeat from * across (you will have 66 stitches on your needle when you finish Row 1)
Row 2: Purl across
Row 3 (decrease row): Knit to within 2 stitches of the first marker, k2 together, *slip marker onto other needle, knit to within 2 stitches of the next marker, k2 together; repeat from * across.
Repeat rows 2 and 3 eight times (until you have 12 stitches remaining on your needle when you finish the row). Break yarn, leavin a 25″ tail end. Thread a yarn needle with the tail end and run through the remaining stitches, pulling firmly to close the top of the hat. Use the remaining tail end to sew a seam that will join the two edges.
This hat is stretchy enough to fit most adults and older children. The pattern can be adjusted to fit younger children by stopping the ribbing after 7 inches (child medium) or 5 inches (child small).