Giro: READY TO ROLL OVER GRAVEL, GRADIENTS AND EVERYTHING IN-BETWEEN The Rinconâ„¢ W combines a supple, breathable Synchwireâ„¢ upper... One-piece Synchwire upper with thermo-bonded exo-structure Rubber reinforced heel and toe sections BOA L6 dial featuring 1mm adjustment and macro release, with steel lace and soft lace guides Reflective heel tab Nylon-composite 2-bolt plate with dual-injected rubber outsole Stainless steel hardware