Brooklime is a striking stranded colourwork hat named after the British native wildflower, Brooklime. It is a low-creeping perennial with spreading stems, and is a plant of shallow standing pretty blue flowers. 

You will need 1 ball of each shade. Why not throw in a 4th shade for an epic pom pom?

You will need:

1 2.5mm (US1.5) circular needle 32"/40cm long or 1 set of 2.5mm (US1.5) dpns 

1 2.75mm (US1.5) circular needle 32"/40cm long or 1 set of 2.75mm (US1.5) dpns

A stitch marker

To fit:

Head circumference: 53.5(57, 62)cm [21(221/2, 241/2)in]

Brim circumference: 49(53.5, 58)cm [191/4 (21, 223/4)in]

Hat body circumference: 55(60, 65)cm [211/2 (231/2, 251/2)in]

Length from brim to crown: 21.5cm [81/2in]

Designed to have 2.5-5cm [1-2in] of negative ease in the brim and 2.5-5cm [1-2in] positive ease in the body of the hat.

Ravelry:

https://www.ravelry.com/patterns/library/brooklime