Poor design, poor quality, terrible customer service.  The pull-tab design is flawed.  After wearing fewer than 20 times, the pull tab and collar ring ripped off.  Many others have commented on having the same issue.  Muck Boots says they can't help because they only offer a warranty on products sold from their website.  They say they'd like to, but can't.  Truth is, they can...they just won't.  Given the number of people having the same issue, you'd think they'd redesign the boot and assist those who paid $100+ for garbage boots.  I'll not be buying any Muck Boot products again.