An over calf sock that provides a precise performance fit for skiers moving on varied to difficult terrain or for wearers of custom fitted boots who prefer thin cushioningprotection these menrsquos and ladies thorlos lightweight ski socks are highly suitable for all cross country ski touring and telemark disciplines thorlos lightweight ski socks are designed with a flat knit instep and arch that improves both fit and ventilation along with the companyrsquos own thor wick warm fibres a