@Goth Gardiner Fabric suggestions from the pattern.
Jersey fabrics, such as wool jersey, cotton jersey, cotton mix jersey, acrylic jersey.
Their samples are made from cotton mix jersey fabrics from myfabrics.co.uk
Given the simple style I think it could be made in something with not much stretch, but obviously need to watch the sizing, and the width of the upper arm area. For similar things I have used ponte, fine sweater knits, novelty jacquard knits, sofa throws (both knitted and woven). Also chunky lace, burn out knit can be fun as you'll definitely be wearing it over another layer.
I find the tee shirt weight knits a bit thin for a cardigan, so wear those ones in the summer when I just want a light cover up.
So it depends what you want from your cardigan - then that can lead you to the fabric and sizing you choose.