In reply to jon:
Well I could photograph them. Just imagine a puppet stand with the boots playing as ravenous sharks
The repair is the sort of task which might be done at home, but access is always limited and dirt hard to remove. Furthermore flat contact to the sole material is limited as most of it is a hollow matrix. Basically, modern footwear is optimised for automated cosntruction under ideal factory conditions and there is no design intent for maintenance. Not uncommon in many genres of consumer goods in our sad age