Get dressed to break PRs. Built for high-action sports in any season, these men's Ortovox 120 Competition Light Short base layer pants are lightweight, breathable and ready for intensity.

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An ultralight base layer designed to manage sweat during high-intensity activities, the men's Icebreaker 125 ZoneKnit leggings keeps you comfortable when you're moving fast.

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Freeriding starts with a reliable first layer of warmth. Stay in your cozy comfort zone no matter the temps with the men's Ortovox 185 Rock'n'wool Long Base Layer pants crafted from fine merino wool.

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Freeride in cozy comfort with the men's Ortovox 185 Rock'n'wool short base layer pants. Made with soft, warm merino wool, they ensure the going won't get tough when the weather gets cold.

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With the natural stretch, breathability and odor resistance of merino wool, the Icebreaker 200 Oasis base layer shorts provide partial-coverage warmth in any season and for any activity.

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Made with merino jersey fabric and an updated design for improved comfort, the men's Icebreaker 200 Oasis leggings with fly are the perfect foundation for your everyday cold-weather layering system.

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Seeking the perfect foundation for your everyday cold-weather kit? Made with merino wool jersey, the men's Icebreaker 200 Oasis Legless base layer bottoms are a worthy addition to any layering system.

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When the going gets cold, don't suffer. Don the men's Ortovox 230 Competition Long Base Layer pants. Mapped so every area of the body is covered in just-right thickness, they keep you warm and moving.

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When the going gets cold, don't suffer. Don the men's Ortovox 230 Competition Long Base Layer pants. Mapped so every area of the body is covered in just-right thickness, they keep you warm and moving.

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A heavier midweight base layer perfect for skiing, snowshoeing or winter layering, the men's Icebreaker 260 Tech leggings are made from warm, odor-resistant merino wool and sport a convenient fly.

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Comfortable across seasons, the men's Arms of the Andes 300 Lightweight Alpaca Wool leggings withstand tough environments and keep you warm in winter and dry in summer.

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For hard training sessions and active lifestyles, these Craft Active Intensity base layer pants help you regulate your body temperature for extended comfort no matter what you're planning to conquer.

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Reward your hardworking legs with hardworking warmth. Made with superfine merino wool, these men's Artilect Boulder 125 leggings deliver softness, breathability and a prime warmth-to-weight ratio.

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Soft, warm, naturally dry and odor-free, merino makes a perfect winter base layer. The men's Craft CORE Wool Mix base layer set provides comfort and warmth for all-day training in colder months.

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