A classic design with all of the Shimano trademarks innovation, quality, and style the R078 road bike shoes are perfect for all around sport use. . Three asymmetrical Velcro straps provide an excellent fit and prevent uncomfortable pressure on your foot. Shimano Dynalast secures the foot into an ideal ergonomic position for a more efficient up stroke. Dynalast hollow channel carbon sole increases total surface area to add strength and rigidity while decreasing weight. Uppers are made from tough, stretch resistant synthetic leather and mesh. Compatible with both SPD SL and SPD cleats. Weighs 461 g 1.01 lb..