The outer sole of a boot or shoe, especially a sports shoe.
- Athletic shoes are basically composed of four parts: the upper, outsole, midsole and insole.
- Thanks to the form-fitting footbeds and Vibram outsoles, these backless wonders breeze through pushy terrain.
- Compared to all other tennis shoes available, it had an extra wide forefoot on the outsole, which gave support when hopping from side to side.
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