These boots are very comfortable.  But after wearing them for 5 days, they are literally falling apart at the seams.  I did not do anything rigorous in these boots.  I only walked around inside.  I am waiting to see how the seller handles my complaint.
Update:  The seller was very cooperative and offered me a refund or replacement.  I chose a replacement because I really like these boots.  They paid for the return shipping, and in less than a week I received my new boots.  Excellent customer service!