One of the sturdiest boots you will find anywhere, ECCO's Exohike Mid GTX boot is a combination of some of the best boot making materials. It features GORE-TEX™ breathable waterproofing, ECCO's revolutionary DriTan leather (which drastically reduces the water used in the tanning of the leather), a PROSOMA heel cup that provides protection and a snug heel fit, and a Phorene midsole, which provides excellent cushion and energy return, and stays flexible even as the temperature dips towards 40 below Celsius. The best part however, may be the outsole. ECCO has partnered with Michelin (yes, the tire company) to make an incredibly grippy rubber sole that provides plenty of traction and stability, even in icy conditions.
Available at Glebe Trotters.
*While not really insulated, the GORE-TEX™ lining, when combined with a good wool sock, will be fine on most winter days.