s knitted flat from a provisional cast on, and then joined together at the end using a Three Needle Bind Off. Brioche stitches are used to pleat the fabric into its 3D form. When working decreases SSK, K2tog, and S2KP, the Sl1-YO is considered to be one stitch. If you have any question, tips for knitting, etc., please post in amirisu group. amirisu will coordinate with the designer to answer your questions. Thank you!