For whatever reason, it seems that shoe companies have stopped producing true zero drop shoes. In previous years I've enjoyed the Newton Distance, Mizuno Wave Cursoris, and Altra Instinct but now I can't find any shoes that are zero drop besides super minimalist vibram junk. I just want a zero drop shoe that has enough cushion that my feet don't hurt at the end of a 16mi LR. I'm a fan of low drop shoes like Kinvaras and NB zantes but those are all 4-6mm and I want to get back to a true zero drop. Any suggestions?