The most advanced design to keep the foot cool during exercise, particularly in extreme heat. Super light weight knit of merino wool fused with IsolfilŽ minimizes the sock's thermal effect. A broad venting system enrobes the foot in breathable mesh (even the toes get their own vent port) while ShockZoneŽ protects foot and prevent hotspots. An incredible design that promises to change how you think about keeping feet cool and dry! Content: 42% Nylon, 28% Merino Wool, 28% Isofil, 2% Lycra |