Lightweight high-performance road shoes with unparalleled power transfer benefitting from S-PHYRE trickle-down technology. Upgraded upper pattern & material improves fit & breathability while reducing weight Surround wrapping upper structure reduces overlap providing a glove-like fit & eliminating hot-spots Super low stack height helps stabilize foot maximizes power transfer & efficiency Integrated sole & upper construction sets a new level of fit stability rigidity & lightweight performance Mesh/TPU/ Synthetic leather composite upper provides comfortable fit & better breathability Light carbon fibre reinforced nylon sole for power transfer BOA L6 skeleton dials ensure precise fit & comfort Weight: 240g (size 42) Stiffness rating: 7