Attaching a collar to some garment is usually uncomplicated or difficult, according to the collar form. I at the time required to attach a collar to a sleeveless major-bodyweight leather vest. I messed it up as I adopted the client’s construction notes – and it ended up hunting a multitude! https://jaredvabcc.gynoblog.com/28276249/chiasethemewordpressblog-no-further-a-mystery