well... the huskies in dawnguard dlc have them ive looked up the same topic you did all it came up with is dogs that have armor, but there is a mod called Garm the Husky companion hes very tough but he needs dawnguard dlc to actually work.. Heres the mod anyway if you have it i mean.. http://www.nexusmods.com/skyrim/mods/33061/?