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Shop Merchants:

Brisk mornings and cool evenings shouldn't deter you from your workout schedule the Frankie Run long-sleeve shirt wards off the chill.

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Superbly soft, the long-sleeve Equilibrium top from Brooks is a base layer that ensures dry comfort on the run.

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The Brooks HVAC long-sleeve top is a great cold-weather performer with a sweet warmth-to-weight ratio.

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The Brooks Vapor-Dry 3D moisture-transfer, mid layer top is anatomically shaped to move with you while you run and offers great thermal regulation in high heat/sweat areas.

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You'll stay warm, but you won't overheat in the Cold Weather half-zip top from Nike.

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Think of the Nike Pro Core fitted long-sleeve crew as first-layer equipment.

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The Nike Pro Therma Extreme long-sleeve top is perfect as an under layer and for training in cold-weather.

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As a base layer or a first layer, this T-shirt from Nike fits closely and is optimally ventilated to keep you comfortable during intense workouts.

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REI OXT Impulse mock-neck, long-sleeve top is perfect for hill climbs, speed work, cool downs and stretching sessions in cool weather.

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Nothing beats this tee for multi-sport training and most any other outdoor activity--every athlete needs one.

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