From the Knit Rowan website:
British Sheep Breeds Fine Bouclé is an extension to our popular British Sheep Breeds range and is a lightweight textured yarn that gives a natural and fine textured knitted fabric.

Details:
Article Number: 9802152
Fibre Content: British Wool: 91%, Nylon: 9%
Season: Autumn Winter
Yarn Ball Weight: 50g
Yarn Meterage/Yardage: 100/109
Tension/Gauge Stitches: 15
Tension/Gauge Rows: 22

Recommended Knitting Needles:
Knitting Needle (UK): 5.5
Knitting Needle (US): 9
Knitting Needle, MM: 5½