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Multiple points of adjustability let you dial in the absolute perfect fit
Upper: Full Grain
Width: Narrow to Medium
a deep heel cup and roomy toe box
Mesh insets allow a continual airflow
1001113 Birkenstock BirkoSport Insole Size:40 Multiple points of adjustability letThis two part insole offers moderate support and cushioning for sports activities. The upper surface is made from damping BirkoZell. The underside is made from stable and shock absorbing BirkoKork. The parts can be worn individually or together.
