Who/what is on the table? Post credit scene with Wesker.

I’m not super deep into the lore though I have played and finished most of the mainline RE games(except Village and 6) but what or who was that’s laid out on the table in the post credit scene on the ship with Wesker? It looked like a pair of boots or was it shoulders. I couldn’t tell. And how does it tie into the rest of the series? Spoilers, give them to me, I don’t really care.