Eliminating the scratchy sensation of synthetics, the Giro HRC Plus Merino Wool Sock places luxuriously soft merino wool fibers directly against your skin for optimal comfort. This premium road and trail riding sock adds more warmth in cooler temperatures, thanks to its core spun merino wool for extra heat retention. Moderate compression properties aide in circulation and arch support enhances pedaling comfort. Meryl Skinlife fibers are placed along the outside of the sock for moisture-wicking performance. This nylon-based fabric boasts permanent anti-odor properties with its silver-embedded particles. This equates to lasting freshness, even after rigorous rides where you're sweating profusely. For robust durability, the toe and heel are reinforced with nylon panels.