Cashmere/merino and merino plus silk, angora, yak, mohair, alpaca... 4ply and fingering weights
The 2/14s cash/wools are from Todd & Duncan of Scotland and with 30% cashmere in the mix and Geelong wool they do feel coarser than the higher proportion cashmere yarns but are stronger and more defined. The 25%/75% cashmere/wool mix yarns were sold by Todd & Duncan under the brand Heather... and the 3/14NM yarns are 35% cashmere, 65% lambswool with two tight spun strands, one colored, one white and one white soft spun slubbby strand, giving a softer feel and lovely texture, originally sold under the Crofter brand by T&D - note the soft spun slubs can make this yarn a bit more delicate than you might expect..
The 80/20 2/15NM yarns are Italian spun and actually feel softer than the Todd & Duncan yarns.. the angora/merinos are also Italian, very soft...
and then there are all those latest mixes, Spanish spun for top Italian makers, Burberry etc...