deiyezooger
There is an inyan to wear it outside and see them
wrong it is not an Inyan which sounds optional but ???? ????
but there is also a kabalistic inyan to wear it the Talis Katan
under your clothes (that explainswhat about? Chabad) so thats
why many chasidim are wearing a vest so its somewhat in
between what & what?
See the references in my previous post