Crank the send knob.
Soul Shell: Like The Original, The Soul shell has a 99mm last. The toe box is roomier, giving your toes space to breathe, and the shell comes with a replaceable toe piece to keep you in service despite running through the parking lot all season.
Pro Liner: The pro liners are specifically engineered to transfer energy to provide the most energy transfer to shell while maintaining warmth in a lightweight and custom moldable fit.
10 Flex / 120