Help. Mesh completely disappeared in game.

Okay so i created a new mesh and did all the necessary things i was supposed to do in order for it to work in the game but it completely disappeared in the game. Even the body except from the head and feet. And yes the cut number is correct and it has being weight painted and uv mapped 0 and 1. Even the texture and verted paint is done. I also triple checked it and everything looked fine in s4s but when i put it into the game, it did not even show up at all which is really frustrating because i can't figure out what i did wrong. If anyone could help me take a look at it, that would be very much appreciated. And no it has nothing to do with the bottom not being closed if u know what i mean. Here is my package 
www.mediafire.com/?53o0it9avm1o3yh