The Martee winter boot from Blondo is great value for money. At $150, you get Blondo's waterproof eco-leather (imitation leather made from natural material such as flax or cotton that is mixed with palm, corn, soybean, and other plant oils and then laminated together in layers) and neoprene uppers, 200 grams of Thinsulate insulation to keep you cozy, and a natural rubber sole that provides sufficient cold weather traction. An inside zipper also helps get these on and off with ease.
Available at Glebe Trotters.