
Perfect socks for trail running.
Challenge socks are perfect for trail running. Its structure and composition avoid blisters, while its ergonomic ESP protection structure reinforces the points of greatest friction with the footwear (ESP plantar structure developed in collaboration with the Spanish Association of Sports Podology, AEPODE)
Composition: 50% Regenactiv - 25% Cool-Tech - 17% Polyamide Ion - 8% Lycra
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