Due to the composite toe guard wrapping around my toes, I found my big toes rubbing against it in the shoe. My 12D is the same width as my Ghost 13s which as it's all fabric allows for some flexibility and I don't notice it with Ghosts and I'm carrying my third pair with no problem. I have a lot of room in the front, but the width feels narrow. In short, trail running shoes are uncomfortable around the big toe. I will look into other trail running shoes