By adding three-piece replaceable soles to the Tech 7, Alpinestars hopes these could be the perfect boots for riding supermoto. There’s a fixed mid-section to provide strength, then the screw-on front and rear designed to wear out and be replaced. See how those screws are mounted on top? That should prevent them wearing with the soles or being damaged in a crash. Think of the Tech 7s as cheaper versions of the Tech 10s without the inner booties.