EXCLUSIVE AT NET-A-PORTER. Arch4 favors classic shapes thatll stand the test of time. A case in point, this crewneck sweater is knitted from sumptuous certified organic cashmere and has ribbed trims.brbrLower-Impact Materials. This product is made using at least 50% lower-impact materials or ingredients. Find out more about our NET SUSTAIN criteria a href=https://www.net-a-porter.com/en-gb/campaigns/net-sustainhere./a