Crafted with Merino wool, the Pursuit features a reinforced heel and toe for maximum durability, even at shorter cuff heights. Merino provides warmth in winter, cooling in summer, and optimized moisture absorption. FEATURES: Natural Merino moves moisture away from your feet, keeping them dry, odorless, and blister-free Temperature control keeps you warm in winter and cool in summer Flex Zones: Constructed with a half-density weave to prevent bunching at your feet's flex points. Thin Channeled Upper: Provides ventilation and incresases breathability. SPECS: Materials: 60% Merino wool / 36% Nylon / 4% Spandex