The RX8 combines the best features of Shimano's high-end road and mountain footwear into one pair of shoes that's specifically designed for gravel racing. A stiff carbon sole ensures all your pedaling power is transferred into forward motion, while the lightweight uppers wrap your feet in supportive comfort. Abrasion-resistant TPU lugs on the outsole provide traction for the tricky hike-a-bike sections commonly found in gravel events.