Do they exist? I bought a pair of Pearl Izumi WxB covers last season and - granted - they bore daily use all last winter, but I went to put them on a few weeks ago and lo! they're falling apart. Toe strap's frayed to oblivion, the bead along the bottom of the cover has separated from the neoprene on the other one. I put them through hell, because I don't have dedicated winter mtb boots (or boots for that matter), but I was wondering if anyone had had good luck with covers that could stand up to a true day-in/out beating. Also, anyone tried to repair their covers? Thanks!