Had the upper lateral cuff buckle rip out of the rivets on my left boot, haven't been able to locate a replacement anywhere online and haven't received a response from Dynafit customer service (probably because they're a decade old). If anyone has one laying around, I'd be happy to buy it from you. I think it's the same on the Mercury, Vulcan, One, TLT5, and PDG (first generation). I strongly believe in reduce-reuse-recycle, I would hate to just trash these because they're missing a stupid buckle, I rather like them (but they're pretty unskiable without it).