Made with a special two-layer soft jersey knit, this Polarmax Double Layer thermal is sure to keep you warm when you need it most. The unique double layer construction of this women's crew neck base layer traps warm air between the two layers for excellent thermal retention, while the special Acclimate Dry hydrophobic yarns provide additional moisture management to wick away moisture, keeping you dry. The relaxed fit of this Polarmax Double Layer thermal makes it a great utilitarian garment.