This yarn is only available wholesale through hannafiberarts.com
Your LYS would need to order it.

This yarn can easily be substituted with another yarn with a recommended ball band gauge of 28 sts = 4 inches using a US #4/3.5mm needle. Approx. 490(540, 590, 640, 690, 740)yd/448(494, 540, 585, 631, 677)m are required.

The stitch pattern in this garment is very stretchy and is intended to be worn with negative ease. The amount of negative ease can range between 3-7 ”

The model has a chest size 35” and is wearing the small- thought this might be useful to know!