I grew up in a farm town. These are the boots I remember seeing farmers wearing at the feed store, in the hog lot, at the livestock auction.  They are heavy duty .. and be warned, after wearing these while chasing a wounded deer through a swampy area I really felt the weight.  Also-- and this is my own fault -- I am a big guy and my calves (on my legs, not from cows) are so large that I can't buckle the top two buckles.