J Crew often has discounts of 30-40% which include this cashmere, so it is pretty easy to get the sweater for a much lower price
This sweater is 100% cashmere. Grana gets their cashmere directly from Mongolia and treats it traditionally, including combing the goats by hand. Their transparency policy gives you more information about each of their fabrics.
The cashmere is lighter weight, so the sweater can be used in spring and fall as well as in winter without being too warm