One skein (3 1/2 oz/210 yd) worsted weight yarn makes any size.
Hat is crocheted seamlessly from center of
crown down to ribbed band, with adjustments
for size worked just above band. Doily
crown is worked with RS always facing (do
not turn at ends of rnds); sc mesh body is
worked back and forth in turned rnds; ribbing
is worked with RS always facing.