Yeah I have the Rocky 18" burly rubber boots, and they work great down to 35 degrees... I also have the Rocky Bear Tracker (I think) they have 1600 grams, and I have had alot of boots, but these boots are by far the BEST My feet have honestly yet to even get chilled... But I think another MAJOR key to that is the socks, someone mentioned the sock liner which basically just like a real thin dress sock I wear that with 1 pair of heavy wool socks and I am toasty. Like I said I was with most of you out there that your feet are just going to get cold period, but these boots and socks have changed my outlook on that. I am truely staying warm no matter how cold or how long... At least so far...