Jamieson & Smith's 2ply Jumper Weight yarns are 100% Shetland wool and are traditionally used in the knitting of Fair Isle garments. Available in an extended palette of sumptuous solids and textured heather shades originally designed by Jamieson and Smith, this flagship yarn cannot be imitated in terms of depth of colour and spinning quality. 2ply Jumper Weight is equivalent to a 4ply/fingering weight yarn.