The best solution is different boots. I broke the adapter day one. Since then I've been using a rigid rear heel bail for my Petzl Leopard crampons and the rubber toe bail that came with the crampons. If you are sure to run the crampon retention strap through the toe bail, the crampons will stay on your feet. I still wouldn't climb ice with them. Overall, Dynafit screwed up big time with this no welt toe, in my opinion.