Giro factor techlace spd sl road shoesthese lightweight factor techlace shoes are race bred cycling shoes coupled with the features of giros techlace system with the easy adjustment of a boa dial the patent pending techlace system replaces d rings and other hardware with replaceable laces that provide a suppler feel across the forefoot while the boa ip1 dial offers quick instinctive adjustment in 1mm increments when tightening or loosening highly breathable and robustthe uppers are made of