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Warm to the Core™


BasePro Pant

(3 customer reviews)


  • Insulated base layer, reducing the need for multiple layers
  • Light-weight, nonrestrictive, breathable
  • comfortable between temps of -0°F to 70°F
  • Designed to be used ‘next-to-skin’ as a first layer, with the addition of another layer as needed for the conditions
  • Patented AERIS 250 (¼”/6mm of loft)
SKU: N/A Category: Tag:

– Use, in Core areas, of Patented AERIS 250 Insulation Technology (¼” / 6mm of loft) Maintains Warmth, Even When Wet.
– Reinforced Stitching
– Covered Elastic Waist Band with Drawcord Adjustment
– Unrestrictive Full Range of Motion
– Lightweight, almost feels like nothing on at all
– First Layer for All Activities
– Reflective Fortress Logo at Front Left Thigh

– 94% Polyester / 6% Spandex 4 way Stretch
– 1 Sided Brushed

Weight 20 oz
Dimensions 12 × 12 × 3 in

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3 reviews for BasePro Pant

  1. Gilbert

    I have to say that these are an excellent product, yesterday I tried the basepro pants when I went snowshoeing, the temperature was around – 4 degree F and I was quite comfortable, by the way I was also using the hoodie 1.0, the regular mittens and the HotSox in an old pair of Canadian armed forces mukluk, so I’m glad I bought those Items too.

    From Canada

  2. Chris (verified owner)

    I took my family skiing in CO and three of four of us wore the BasePro Pant and the Top. I wore the crew neck BasePro Top which eliminated the need for another layer of either a turtleneck or a different clothing article to keep my neck warm and dry. I wore a Marmot Androo Jacket, a minimal insulated shell, over my BasePro to keep the wind out. One daughter wore a Hybrid Hoodie 1.0 with it and the temp regulated with the Base Pro; another daughter wore a goosedown jacket but was hot. Once she shed the goosedown for a soft shell, she was fine. Our activity temps ranged from -4 to 8 degrees F at night and 4 to 23 degrees F in the day. Those of us that wore the Fortress we were warm and comfortable always even as the temps increased. The only time we were overly warm was inside the condo in the morning as we were preparing for the day. The one that did not wear the Fortress Clothing wished she had it. The early remark was that it made her look fat. The others said “who cares – we just needed one layer and a shell and didn’t have to shed or add as the weather changed. Easy to get ready in the morning.”

    I’d love to see a later version of the Base Pro be thinner. I would also like to see the sleeves on the Top come down just a bit further.

  3. Michael (verified owner)

    I’m a production manager in a meat processing plant. I bought the base pro 1/4 zip top for me to try at work. I was amazed at how well it worked and told my pack room supervisor about the shirt. She had me order it for her and was highly impressed and asked me to order the base pro pants for her. I ordered them for her and again she was highly impressed and told one of her friends there who also wanted the pants. She is completely satisfied with them and as word of mouth gets around the company I’m sure there will be more orders placed.

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