Definition from Wiktionary, the free dictionary
midsole (plural midsoles)
- The layer of a shoe in between the outsole and insole, typically there for shock absorption.
2007 December 13, Sarah Bowen Shea, “Racing to Be in Step With the Green Movement”, New York Times:
- But that is not stopping Brooks Sports from introducing its BioMoGo midsole, made with an additive that the company says will promote the break down of the polymers within 20 years.