Largest hook size was a P (11.5mm) on pattern.

from crochet Me website, information on the 2nd yarn:

1 ball of Rowan’s Kid Silk Haze (B) in Villian (25g per 229yds). You could substitute another lightweight yarn easily, in either a tonal or contrast color. The gauge isn’t crucial for the trim.

from crochet Me website, information sizing:

Pattern as written has a 36-inch dropped waist that stretches to 42 inches and can be tightened to 32 inches without looking odd. You can add or remove a pattern repeat to change size 3 inches at a time (details included in pattern).