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When running in cold weather, which one of the following materials is not recommended for layering next to the skin?

a. Cotton
b. Polyester
c. Wool
d. Nylon

User Nikvs
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1 Answer

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Sorry if this is not too much help- but I believe that it would be D. Cotton and Wool are both natural, strong fibres that have good insulation. Polyester has sinilar properties but is a synethic fibre.
User Noro
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