Preorder are estimated to ship at the end of January to mid February
WAVE 2 PREORDERS ARE ESTIMATED TO SHIP LATE FEBRUARY
It's like the giyu sweater but it's a cardigan.
more similar to the haori than a sweater is so technically it's cooler, but also less subtle. I'd be shocked if people recognized this w/o having seen the anime tho so you should be fine.
Size Chart Available here.
Check the size charts above to best estimate your size on this. Also don't hesitate to contact me in regards to sizing so I can best help you decide on what to wear.