Grange and Barn yarn are available from Susan Crawford Vintage.

Grange is a gender-neutral, casual, everyday slouchy hat. Its textured design evokes an old barn’s wood boards, rustic and raw, straight and askew.
It’s so warm and comfortable that wearing it is like being instantly transported to Susan Crawford’s cozy barn up at Monkley Ghyll. What a treat!

Yarn
Susan Crawford, Barn, 100% British wool: a unique blend of Jacobs, white Shetland and black Shetland, DK weight approx. , 225 m / 246 yds, 100 g.
1 skein.

Needles and notions
4 mm/US6 circular needles or DPNs or needles required to obtain gauge
Tapestry needle
Markers

Gauge
19 sts and 33 rows = 10cm/4in over textured pattern after blocking
Finished measurements
29 cm from brim to crown top after light blocking

Size
One size.
Fits 55 to 62 cm head circumference nicely.