out of all the heart breaking moments out of season six this was the one that actually broke me the most:
“Shiro’s” (old) clothes used to be Keith’s dad’s. And Keith most likely remembers his dad in these clothes, since we saw from the flashback that he was old enough to remember him when he passed away. This means Keith had kept them for all these years, and had to dig them up when they found Shiro again, probably symbolic for passing on the role as Keith’s father figure onto Shiro. Only to lose him again with his father’s clothes along with it, as to symbolize that Keith is now ready to move on from grieving his father’s death.