GRAVEL SHOES WITH OPTIMALLY BALANCED STIFFNESS AND WALKABILITY. FEATURES Carbon-reinforced sole provides race-level rigidity for enduring pedaling performance on day-long rides. Wide outsole pattern with TPU lugs for optimal on- and off-the-bike comfort and performance. Lightweight gravel-race-inspired outsole. Surround wrapping upper pattern balances holding power and comfort. BOA L6K dial allows quick and precise micro-adjustment. System engineered with SPD pedals for maximum pedaling efficiency and stability. PRODUCT SPECIFICATIONS MODEL NO SH-RX600 SERIES SHIMANO Model year 2023 Line up year 2023 Gender Men's Segment/Category OFF-ROAD/Gravel / Adventure Product name RX6 Color Green, Black Size Standard:38-50 Wide:38-48 Cleat type SPD Last type SHIMANO DYNALAST Stiffness index 8 Best match pedal PD-M8100, PD-ES600 Features_Surround wrapping upper Features_Heel stabilizer Features_Carbon sole/Mid sole Technology_SHIMANO DYNALAST Technology_Silvadur Closure 1 BOA (L6), 1-strap Upper Material Synthetic leather Outsole Material Carbon fiber reinforced nylon+TPU Standard insole cup insole Men's Actual weight (Size: 42) 274 g