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just got my 5th pair of kinvaras in the post. Good old kinvaras.. but it seems like the material on the back of the heel is stiffer or comes up higher on these kinvara 3s than my old kinvara 2s, and it rubs around my achilles.
Rather than send them back (faff of returning + faff of finding something different) - can anyone suggest how to stretch/soften/trim the offending fabric?