J Crew's crackle metallic Mary Jane pump (99530) is currently $149.99 down from $228.
It comes in sherbert
or metallic pewter
I haven't tried these on, but here is a review from an anon on JCA:
"I bought the crackle-metallic mary janes and they are TTS. Before buying them myself I read several other posts that said they were TTS.
I have the sherbet color and it is really cute, very nice for spring/summer. They are quite comfortable for 3.5" heels. The strap helps keep my heel in the shoe, which can be an issue with heels over 3" high. There is a wee bit of toe cleavage but just a wee bit. ;-)"
And from dani_california
I bought the crackle mary janes as a christmas present for someone in her normal 7.5 and they fit perfectly. They are gorgeous IRL (she wanted the parsley color). She also reported that they are really comfy for heels!