The women's Polarmax Active Stretch Base Layer Crewneck is a baselayer top for cold weather activities, providing a comfortable layer beneath ski clothing. Four-way stretch supports movement on the slopes, while midweight fabric balances warmth and comfort. The polyester-spandex blend wicks moisture, and Acclimate Dry technology helps regulate temperature and moisture. Activated carbon technology supports odor control and moisture absorption, while Bio Silver treatment helps reduce odor-causing bacteria. A snug, flexible fit makes it easy to layer.