Part of 3D Leggings Floating Over Player's Head - Please Help

I'm new around here, so I apologize if I'm posting this in the wrong place, but I've been all over the forums for hours and can't find an answer. I made a custom jeans model in Blockbench to function as leggings in my mod. The model looks perfectly find in Blockbench, but part of the model is hovering over the player's head in game. I've tried adjusting things like pivot points in blockbench but nothing seems to work. Can someone please help me get this model working?