The construction of the three-layer, seamless upper provides strength and comfort for the entire day. A bi-directional closure wraps around the foot for a semi-custom fit and offers good support. The Boa IP-1 wheel allows for precise adjustments and opens completely by simply pulling on it. The nylon-carbon composite midsole ensures efficient power transfer. The EVA foam midsole absorbs shocks while walking and is compatible with the SPD system.