I purchased these for hunting and to replace my mud boots that are rubber and cracking. I wanted something that was waterproof and offered insulation for cold Michigan winters. So far, these are the best hunting boots I've ever had. They are snug around the calf, roomy in the sole and fit a thick pair of wool socks without any problems. I was a little worried about breaking them in, and having painful calves and feet, but they're really comfortable. I highly recommend them.Update: After a week long hunting trip in the middle of the woods, I wore these boots from sun up to sun down and they're amazing. Scouting, tracking, rough terrain and obstacles were no problem. I felt dry, secure, warm and had a great footing in the woods. Temps dropped below freezing and my feet stayed dry and warm. Pleanty of room for thick wool socks and the high calf profile did not hurt my calves. Hands down the best boots I've ever owned!