I saw a bunch of Kiton "tricot" cashmere sweaters which are much more expensive than regular Kiton cashmere sweaters. Do you know what makes them special?
I would venture a guess that a sweater woven in a tricot fabric is more intricate/labor intensive to justify - or justify marketing - a higher price (more durable knit, interesting textures, etc.).
Someone with better understanding of textiles might be more helpful.