Here's some science:
Ortholite Performance and Comfort Inserts with Infinigrip Anti-Slip top cloth
Breathable boot construction for superior ankle lock in with Ariaprene® synthetic foam, providing a balance between stability, compression, stretch and breathability
REVlite ¾ length cushioned midsole with internal shank for support
Internal high abrasion toe box for shape retention and toe-punting
Suede heel foxing in high abrasion areas.