Do you guys know any yaoi with backless turtleneck?

i'm not sure exactly but i feel like something like that is in Rix Vanus, the fashion is fabulous
http://www.mangago.zone/read-manga/rix_vanus/

Sort of? http://www.mangago.zone/read-manga/long_time_red_mall/
It’s a dress though and it shows up in the most recent couple of chapters