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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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Sasta Sade Gore-Tex® Pants - Waterproof (For Women) in Dark Blue - Closeouts
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$189.95 Save 40%
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Kenyon Polarskins Base Layer Bottoms - Midweight (For Men) in Black - Closeouts
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$16.95 Save 39%
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Icebreaker Vertex Base Layer Bottoms - Merino Wool, Midweight, UPF 30+ (For Women) in Admiral - Closeouts
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$52.62 Save 47%
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Kenyon Polarskins Base Layer Top - Midweight, Long Sleeve (For Boys and Girls) in Black - Closeouts
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$11.95 Save 40%
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Kenyon Polarskins Base Layer Bottoms - Midweight (For Boys and Girls) in Black - Closeouts
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$11.95 Save 40%
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Icebreaker Oasis Shirt - UPF 30+, Merino Wool, Long Sleeve (For Men) in Cave - Closeouts
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$62.95 Save 30%
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Terramar Fleece Base Layer Bottoms - Lightweight (For Women) in Black - Closeouts
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$16.95 Save 41%
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Mountain Hardwear Integral T-Shirt - UPF 25, V-Neck, Long Sleeve (For Women) in Black - Closeouts
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$43.57 Save 44%
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Icebreaker Original Zip Base Layer Top - Merino Wool, Zip Neck, Long Sleeve (For Men) in Gravel - Closeouts
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$104.95 Save 30%
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Columbia Sportswear Omni-Heat® Base Layer Top - Heavyweight, Long Sleeve (For Men) in Black - Closeouts
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$42.95 Save 33%
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Kenyon Polarskins Expedition Weight Base Layer Bottoms (For Boys and Girls) in Black - Closeouts
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$14.95 Save 42%
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Terramar Fleece Base Layer Top - Crew Neck, Long Sleeve (For Women) in Black - Closeouts
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$16.95 Save 41%
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Kenyon Polarskins Base Layer Top - Expedition Weight, Long Sleeve (For Boys and Girls) in Black - Closeouts
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$14.95 Save 42%
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X-Bionic Energizer MK2 Base Layer Top - Long Sleeve (For Men) in Black/Red - Closeouts
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$137.20 Save 30%
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Mad Rock Mugen Tech Climbing Shoes (For Men and Women) in Grey/Blue - Closeouts
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$74.95 Save 25%
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Columbia Sportswear Omni-Heat® Base Layer Top - Heavyweight, Zip Neck, Long Sleeve (For Men) in Black - Closeouts
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$37.09 Save 45%
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Terramar Body Sensors® Tech Jersey Tank Top - Lightweight,  Mesh Sides (For Women) in Black - Closeouts
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$12.50 Save 37%
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Terramar Jacquard Silk Base Layer Bottoms - Lightweight (For Women) in Black - Closeouts
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$29.95 Save 40%
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Icebreaker GT200 Pace Base Layer Top - Merino Wool, Crew Neck, Long Sleeve (For Women) in Panther/Silver - Closeouts
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$52.96 Save 47%
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Kenyon Polarskins Base Layer Top - Midweight, Long Sleeve (For Men) in Black - Closeouts
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$16.95 Save 39%
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Kenyon Polarskins Base Layer Bottoms - Lightweight (For Men) in Black - Closeouts
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$12.95 Save 41%
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