A flat toe seam helps prevent the kind of bunching that can cause discomfort when running up and down hilly terrain. Lycra fabric construction and ThermoFit technology ensure that these socks return to their original shape and size after every wash. Performance trail socks Low fit (sport) Fabric: 64% nylon / polyamide, 33% merino wool, 3% Lycra / elastane Moisture management ThermoFit Flat toe seam Toe guard T2 AntiShock cushioning ShockZones Overfoot ventilation Zero debris cuff Natural toe spread Y-Heel Colour: Blue