I don't think they were defective at all. Just not durable enough. I'm pretty hard on boots from riding, constant strapping in, and plenty of hiking and hanging out mixed in.
15 NS Ripsaw . 14 NS Proto HD . 14 NS Cobra . 13 Gnu Space Case EC2PTX . 2013 Salomon Powder Snake
14 Now Drive . 13 Now IPO
14 Flow Hylite