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You are here: Factor 1 Plus

Thermal underwear base layers are the first layer of clothing you wear to maintain a warm and dry micro-climate next to the skin. Thermal underwear base layers can also act as compression aids in muscle recovery.

Sub Zero Factor 1 Plus are one of the most technical thermal underwear base layer ranges currently available on the market. Their excellent wicking and thermal properties make these garments ideal as a first layer for all outdoor sports.

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