Although Shetland is some distance from Suffolk, I didn't think we could not stock shetland wool. It comes in such a range of weights and colours and the undyed versions are very diverse in colour.  Added to that it's a great yarn for all sorts of knitting and crochet projects.  I also use the finer weights in my weaving projects as both warp and weft. 

We buy the yarns from the two main producers in Shetland, Jamiesons of Shetland and Jamiesons & Smith.