Over the calf MerinoFusion ski sock incorporating Lycraå¨ throughout for a supportive, wrinkle free fit. Available in lightweight or midweight for any sort of warmth you need! Vertige Light: Tactelå¨ shin pad for reduced friction plus micro-terry underfoot pads. Material: 20% Merino Wool, 20% Endurofil‰ã¢, 51% Nylon, 7% tactel, 2% Lycraå¨.|Vertige Mid: Terry knit shin pad plus full foot and toe padding provides additional comfort and warmth for colder or slower days. Material: 25% Merino Wool, 25% Endurofil‰ã¢, 48% Nylon and 2% Lycraå¨.