Wrong amount was stated in the pattern.
For the scarf you will need 2x ITO Rokku and 2x ITO Sensai.
For the hat you will need 1x ITO Rokku and 1x ITO Sensai.
For the set you will need 2x ITO Rokku and 3x ITO Sensai.

SCARF
Size
Length approx. 160 cm / 63″, Width approx. 17 cm / 6 ¾″

Material
1x ITO Rokku, here: #278 Slate, approx. amount 112 g
1x ITO Sensai, here: #321 Smoke, approx. amount 28 g
Worked with one strand Rokku and one strand Sensai held tog.

Needles
6 mm / US 10 ndls

Gauge
26 sts x 21 rows = 10 cm / 4″ over ajour pattern using 6 mm / US 10 ndls measured unstretched

HAT
Size
One size to comfortably fit average adult head sizes 54 - 58 cm / 21 - 23″
Circumference approx. 44 cm / 17 ½″ measured unstretched,
Height approx. 23 cm / 9″

Material
1x ITO Rokku, here: #278 Slate, approx. amount 50 g
1x ITO Sensai, here: #321 Smoke Gray, approx. amount 12 g
Worked with one strand Rokku and one strand Sensai held tog.

Needles
4,5 mm / US 7 dpn
5,5 mm / US 9 dpn

Gauge
28 sts x 24 rows = 10 cm / 4″ over ajour pattern using 5,5 mm /US 9 ndl measured unstretched