It took a long time to find a pair of US-made Chukkas.  In fact, I think Wolverine stopped making these but I happened to come across a pair here on Amazon.  They no longer appear on the Wolverine website.  I wear these when doing landscape type work in my yard.  I have an acre in Florida and there is plenty of professional-type work: Digging chain-sawing, etc. that require a durable and safe boot.  My only complaints are the toe leather is wearing fast.  But this is more of a result of the steel toe providing a stiff counter to the leather when pressed on rough surfaces. The uppers and soles are still in excellent condition almost a year later.  No signs of splitting of the upper from the lower.  Somewhat comfortable. My Thorogood's were much more comfortable but they stopped making the safety toe chukka.

Upate June 2015 - the soles on both shoes are worn and have split.  I guess three years of use is good. The upper leather is still in tact and well attached to the soles.  The steel eyelets and lace cups are still in great shape - sometimes these either pop out or get mashed. Wolverine made a good boot but sadly no longer makes a Made In America chukka so I'm going to try some Rockies,