2 x 50g balls, 8ply yarn
Cast on 3 sts. Knit one row.
Working in garter stitch throughout, increase one stitch at the beginning of each row until edge measures 25 cm. Place a coloured marker here on one side. This will now be the lower edge of the cap.
Increase one stitch at the beginning of the coloured marker side. Decrease one stitch at the beginning of the other side until the longer (marker) side measures 40-43cm.
Decrease one stitch at the beginning of each row until the 2 short sides are the same length. You will now have a rectangular shaped piece of knitting.
With sts still on the needle. pick up and knit every 'knot' along the long edge. Knit 2 together along the next 2 rows. Thread yarn through the remaining sts and pull up tight and fasten off. Thread tapestry needle with yarn; sew the 2 short sides together to form back seam.
Turn lower edge up to suit. Hey Presto... Cap
Diagram showing pattern dimensions.