Building on the original Chamber's platform, the Mid Shoes were given a mid top design for additional upper foot and ankle support. DH racing demands a unique combination of platform and clip in style pedals to permit quick recovery when un clipped. The Giro Chamber Shoes have a nice, stiff insole for being connected to a pedal without hotspots, yet it has a Vibram outsole for traction on pedals when not fully clipped. The Chamber's internal, molded SPD shank is designed to nest within the EVA midsole to keep the shoes' profile and SPD connection as low as possible. This lets your foot reside close to the pedal axles to encourage efficient spinning for out of the gate performance. The midsole has Poron XRD in the heel cup that, along with a bootie retention system, ensures a secure fit without any energy lost to heel lift. The Poron located in the heel cup also helps to absorb impact during a bail. Those bails can wreak havoc on a shoe's upper, so Giro equipped the Chamber with a durable, rubber reinforced toe box. The synthetic leather upper is ventilated for breathability, and a hook and loop strap prevents the Chamber's laces from turning into a meal for your drivetrain. The Giro Chamber Mid Shoes come in whole sizes from 39 to 48 and in the color Blackgum.