Get elemental protection all year round with Duofold(R) Men's Varitherm Expedition Crew. Designed with Dri-release(R) technology, the lightweight varitherm is crafted to transition from warm to cold weather to keep you dry no matter what the season is. Offering maximum flexibility and stretch for optimum fit, the Duofold(R) Men's Varitherm Expedition Crew delivers ultimate performance for any high-activity sport! FEATURES: Two-layer thermal for warmth in extremely cold weather Flatlock seams to avoid irritation Drop tail protection against the cold