Here is a set of three hats, each done in a different lace pattern. The hats are slightly slouchy but can be easily adjusted to whatever length is desired.

Sizes: S (M, L) To fit Head Circumference 20 (22, 24)“ 51 (56, 61) cm Shown in size M with 10% negative ease.

Finished Measurements
Hat Brim Circumference: approx. 18 (20, 22)“ 45.5, 51, 56) cm
Hat Length: 7¾ (8, 8½)“ 19.5 (20.5, 21.5) cm

Materials
Knit Picks Preciosa (3.5 oz/100 g, 437 yd/400 m, 100% Merino), fingering weight yarn CYCA 1, 1 hank Anemone for Arrowhead Lace Hat; 1 hank Maritime for Zigzag hat

Knit Picks Palette (1.75 oz/50 gm, 231 yds/211 m, 100% Wool), fingering weight yarn, 1 ball Pool for Butterfly Lace hat

US size 3 3.25 mm 16” 40 mm circular needle
US size 5 3.75 mm 16” 40 mm circular needle and double-pointed needles (set of 4-5), or size needed to obtain correct gauge

Stitch markers, Stitch holders or waste yarn, Tapestry needle