I bought these boots for wet wading back in 2018 and fished them hard for the 2018, 2019, 2020 and now the 2021 season. After countless miles the soles have started to delaminate.
I have looked at buying either the Simms Flyweight boot or the Simms Freesalt boot to replace these. I have used ShoeGoo to fix the heel on the right boot before but it did not hold so I may find a local shoe repair business to see what they can do to fix these. The uppers are holding up really well and the boot is still the most comfortable I’ve worn so I don’t want to give up on these boots or waste money on another pair.
Time to use my Google-Fu and find a local cobbler!
Velox Seeker 
Great article. I’m dealing with some of these issues as well..
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