Fabric Warmth Ratings

Dependable, everyday thermal underwear

Polarmax Single Layer

  • Acclimate Dry+ technology moves moisture away from your body.
  • Mechanical Stretch
  • Midweight warmth, relaxed fit
  • In adult and youth styles
  • 100% Polyester; 175 gsm
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Comfortable and easy fitting for multi-purpose activities

Polarmax Double Layer

  • Our most popular thermal base layers
  • Acclimate Dry fibers for moisture management
  • Double layer traps air between layers for extra warmth
  • Flat seam construction for seam strength and longevity
  • Versatile for sports or everyday warmth needs
  • Mechanical Stretch
  • Midweight warmth, relaxed fit
  • In adult and youth styles
  • 100% Polyester; 150 gsm
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Comfortable and easy to move in Merino Wool thermal hybrid

Polarmax Merino Wool

  • Acclimate Dry hydrophobic yarns
  • Odor Blocking
  • Four-way stretch
  • Midweight warmth, relaxed fit
  • In adult styles
  • 67% Polyester / 28% Merino Wool / 5% Spandex; 175 gsm
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Easy to layer, lofty stretch micro fleece for colder conditions

Polarmax Microfleece

  • Billowy warmth without weight
  • Acclimate Dry hydrophobic fibers for moisture management
  • Exceptionally durable microfiber polyester
  • Flat seam construction for seam strength and longevity
  • Smooth outside, brushed fleece inside
  • Four-way stretch
  • Heavyweight warmth, active fit
  • In adult and youth styles
  • 92% Polyester / 8% Spandex; 220 gsm
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