I've only had the the toecaps slip once after 10 days on them, and I'm pretty sure it was my own fault from being careless and not putting them on properly. They work way better than I would've imagined, even on the smooth, rounded toebox of these NB x 686 boots.
15 NS Ripsaw . 14 NS Proto HD . 13 Gnu Space Case EC2PTX . 2013 Salomon Powder Snake
14 Now Drive . 13 Now IPO
14 Flow Hylite