HELP: what do you call this flap?

I have that bag with the old chain! I thought the official name was east/west? That's the only name I've ever heard it being called. I never heard anyone call it a pochette, even SAs...
 
i'm really contemplating getting this one, i think it's a good choice for awhite bag, cuz the chain is all metal, you don't have to worry about the chain getting dirty and all.
 
just to verify
that color isn't white-white is it? its more like a tea with creamer-white? if that makes any sense?
i am contemplating this too haha
i really love the e/w size, i never used to!