

Merino wool v Rayon
I bought the sweater on the left 4 or 5 years ago, and I love it. It’s 100% merino wool. I saw the same brand has released the sweater on the right this year, and when I went to read the description before purchasing it, I saw it was 100% rayon. Is there any reason other than cost for this brand to be making fine-knit sweaters from rayon rather than wool? The sweater is currently on sale, but its full price was over $400. I don’t know enough to know if rayon is a perfectly fine substitute or not.