Shimano's SD5 (SD501) SPD Sandals are a true icon, offering the ultimate in comfort for touring and long bike-packing adventures. They are perfect for riders who want footwear that is comfortable both on and off the bike. The improved sizing provides a better, more comfortable fit. A comfort liner allows for sock-less riding, although wearing socks is highly recommended. A cleat-cap is included for use with non-SPD flat pedals. The semi-rigid Power Transfer Blade offers significant power-loss reduction for efficient power transfer and is comfortable for walking for extended periods. The shoes are lightweight at just 720g per pair (size 42). The new SD5 has improved sizing and fit compared to the original, making them even more comfortable for all-day rides. The cleat cap can be used with flat pedals if SPD pedals are not preferred. The semi-rigid Power Transfer Blade not only results in efficient power transfer with significant power-loss reduction but is also comfortable for walking for hours on end, allowing for total comfort even when hiking or walking.