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Polypropylene is a polymer fiber that does not absorb moisture but will wick moisture from the skin. Polypropylene is often used in both warm-weather and cold-weather performance base layers. It is used by wearers primarily for non-aerobic activities such as heavy weight lifting or sprinting.
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Icebreaker Everyday Bodyfit 200 Base Layer Bottoms, Lightweight, Merino Wool (For Men) in Cave - Closeouts
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$41.95 Save 30%
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Patagonia Rock Grip Wading Boots - Aluminum Bar (For Men and Women) in Narwhal Grey - Closeouts
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$149.95 Save 37%
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Icebreaker Everyday Base Layer Top - Merino Wool, Lightweight,  Long Sleeve (For Women) in Horizon - Closeouts
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$41.95 Save 30%
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Icebreaker Oasis T-Shirt - UPF 30+, Merino Wool, Lightweight, Short Sleeve (For Men) in Cave - Closeouts
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$51.95 Save 30%
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SmartWool NTS Base Layer Bottoms - Merino Wool, Midweight (For Women) in Wine Heather - Closeouts
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$65.95 Save 30%
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Icebreaker Apex Base Layer Bottoms, Midweight, Merino Wool (For Men) in Cave - Closeouts
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$69.95 Save 30%
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Terramar Fleece Base Layer Crew Top - Long Sleeve (For Men) in Black - Closeouts
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$16.95 Save 41%
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Terramar Dri-Release T-Shirt - Lightweight, Short Sleeve (For Women) in Black - Closeouts
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$14.95 Save 40%
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SmartWool NTS 250 Base Layer Bottoms - UPF 50+, Merino Wool, Midweight (For Men) in Graphite - Closeouts
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$65.95 Save 30%
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Icebreaker Everyday Base Layer Bottoms - Lightweight, UPF 20+, Merino Wool (For Women) in Sangria - Closeouts
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$41.95 Save 30%
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SmartWool NTS Midweight Pattern Base Layer Top - Merino Wool, Zip Neck, Long Sleeve (For Women) in Polar Purple - Closeouts
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$70.95 Save 35%
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SmartWool NTS Base Layer Top - Merino Wool, Midweight, Crew Neck (For Women) in Arctic Heather - Closeouts
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$61.95 Save 34%
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Icebreaker Tech Crew Base Layer Top - Merino Wool, Long Sleeve (For Women) in Black - Closeouts
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$69.95 Save 30%
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Narragansett Trader Waffled Thermal Cotton Shirt - Long Sleeve (For Men) in Light Heather Grey - Closeouts
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$11.86 Save 70%
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