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BasePro 1/4 Zip

 ‘Next-to-skin’ as a first layer 

Manages all moisture (works when wet)
-5°F to 70°F
  • AERIS 250 Insulation Technology (¼” / 6mm of loft)
  • Maintains warmth, even when wet
  • First Layer for All Activities
  • -5°F to 70°F with an uninsulated shell
  •  1-2 layer Technology (Using our layering system

Between sizes ---> Size up to avoid exchanges

-92% Polyester / 8% Spandex 4 way Stretch 1 Sided Brushed Polyester
Weight 16 oz
Dimensions 12 × 12 × 3 in

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Customer Reviews

Based on 47 reviews
John Martinez
Simply Wow!

I met Dale and Devan at the Shot Show. Wow! These guys were very helpful and informative about the Fortress Gear. Enough so, I bought almost every item they were selling. It's the warmest and most comfortable clothing I have ever worn outside and it keeps you surprisingly comfortable inside. You won't be disappointed!

Greg Fitzgerald
BasePro was the bomb!

I recently used the BasePro 1/4 Zip, top and bottom, on summit night and for sleeping at night on Kilimanjaro. For the weight it was the smartest article of clothing I brought. Simply put, you get what you pay for! I can't wait to use it on other hikes, hunting, snowmobiling, skiing and especially ice fishing. Heck, I may even wear it around the house in the winter, it's like thermal pajamas on steroids. :)

Ben G
Does the Job Very Well

This is the perfect base layer. It's thin where it needs to be so when working hard your body can breathe and get moisture out, but then has the insulation in the right spot so when you're in the cold and not moving a lot it keeps you very warm.

Rich Samoska
More than a polertec and GREAT customer service.

I own Polartec top and bottoms and I’ve used it for over 20 years, a friend introduce Fortress clothing to me 12/21/22 I bought the top and bottom, and it is amazing! to say the least. Watch the Fortress video it is true.
I received them from Utah to Connecticut in three days. Great customer service too!

Gregory Hess
Coaching base layer

I have been wearing it every day out to track practice in 40° temperature and ran. Staying warm and dry.

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