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Women's Long Underwear Tops

  • 44 Items
    • Long Sleeve Dart Half Zip (Women's)Quick View


      Long Sleeve Dart Half Zip (Women's)

      $139.99 - $140.00

    • Long Sleeve Flash Half Zip (Women's)Quick View


      Long Sleeve Flash Half Zip (Women's)


    • Capilene 1 Silkweight Crew (Women's)Quick View


      Capilene 1 Silkweight Crew (Women's)


    • Capilene 3 Midweight Crew (Women's)Quick View


      Capilene 3 Midweight Crew (Women's)

      $32.95 - $55.00   $55.00

    • Capilene 2 Lightweight V-Neck (Women's)Quick View


      Capilene 2 Lightweight V-Neck (Women's)


    • Capilene 4 Expedition Weight 1/4-Zip Hoody (Women's)Quick View


      Capilene 4 Expedition Weight 1/4-Zip Hoody (Women's)


    • NTS Micro 150 Pattern Tee (Women's)Quick View


      NTS Micro 150 Pattern Tee (Women's)


    • NTS Micro 150 Crew (Women's)Quick View


      NTS Micro 150 Crew (Women's)


    • NTS Mid 250 Crew (Women's)Quick View


      NTS Mid 250 Crew (Women's)


    • Midweight Pattern Zip T (Women's)Quick View


      Midweight Pattern Zip T (Women's)


    • Midweight Zip T (Women's)Quick View


      Midweight Zip T (Women's)


    • NTS Light 195 Crew (Women's)Quick View


      NTS Light 195 Crew (Women's)


  • 44 Items

There are two types of women's long underwear tops & base layers: synthetic and wool. Synthetic vs. wool is the key question when it comes to choosing a new pair of long underwear. They both work very well but have different characteristics which make them suited better for different activities. Synthetic fibers were designed to wick and dry very quickly which makes them more appropriate for very aerobic activities like running and skiing. Eco-friendly wool fibers do a better job at regulating your body's temperature and also has a natural odor repellency. This makes wool more suited for stop and go activities like climbing or hiking. Although wool and synthetic fibers have different characteristics, they both do an excellent job of wicking away moisture and keeping you dry and comfortable. Base layers generally come in three different weights or thicknesses; lightweight, midweight, and expedition weight. Lightweight is great for cool mornings or as a just-in-case layer if you are unsure of the weather. It is also works great for warmer weather because it is generally the fastest wicking while it also helps to keep the sun off your skin. Midweight is a great all around weight for cool to cold weather activities when you are staying active. These work great as a layer under an insulated jacket or as a standalone piece when the temps begin to rise. Expedition weight is for extreme cold or stop and go activities when you need a lot of insulation. These are often cut so that you could fit a lighter weight layer under them for arctic temperatures.

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