Cast on 84 sts. to get a smaller hat. Used size 8 needles for cast on row and first knitted row. Then switched to size 6 for the rest of the hat. (The brim will be a rolled brim.)

21 rows plain
4 rows variegated
4 rows plain
continue in this pattern

Half way through the fourth set of variegated yarn, start the Turn a Square decreasing.

I do not know what size hat this turned out to be. I’ll do some research on that later.

This is about the 16,160 Turn a Square Hat project on Ravelry.

The finished measurement of the (unstretched) opening was 8 1/2 (x2).