Same thing happened to a family member's THE 9s after 2 years (sole cracked/tore at the hinge area). Reached out to Dexter, and they admitted that the shoes weren't built for durability. They were primarily designed for comfort and performance. They offered to sell us a replacement pair at cost.
The family member bought Hammer/KR performance shoes and has been extremely satisfied.
I still use Dexter, but prefer the SST6 or SST8. They have pretty much gone to the BOA lacing system on those. Seems OK so far.
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