Shawl is knit in 2 pieces from the side corners using short rows and grafted at center back.
“Lacy without being overly dressy, this lightweight mohair-silk shawl is ideal for wearing - or working on - while traveling.”

70% kid mohair, 30% silk yarn, Kid Seta is 2 ply, 28 WPI

Good substitute yarn would be Rowan Kidsilk Haze