SmartWool made the PhD Outdoor Ultra Light Pattern Crew Sock smart enough for any hike. ReliaWool mixes naturally antimicrobial merino wool with durable nylon for long lasting comfort. SmartWool's 4 Degree elite fit system uses two elastics for stretch and recovery, and there are additional bands around the ankle and arch for support. Strategically placed mesh ventilation zones keep your feet cool in summer's warm weather.
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