Boasting a breathable mesh construction these bike socks are designed to keep your feet cool and dry the castelli free 9 socks feature meryl skin life antibacterial yarns to prevent odours whilst the high density elastic mid foot band supports the arch of the foot the flat seam toe will also help to prevent rubbing and irritation lm key features castelli free 9 socks breathable mesh construction will keep your feet cool and dry meryl skin life antibacterial yarns to prevent odour