Using UnderArmour as your base layer

bipock

FNG
Joined
Jul 16, 2025
Messages
47
On my CO archery hunt last year, my base layer was an UnderArmour Cold Gear long-sleeve shirt with my outer layer being a Tuo 250 merino wool sweatshirt. For the couple times it rained, I used a Tuo Aptitude uninsulated jacket that kept me dry and warm. Pretty much the same with my lower layers - UnderArmour Cold Gear leggings and Wrangler ATGs.

That I can recall, I never got cold, never really got hot. Did get a little wet on the lower body in the rain but it dried pretty quickly.

Outside of saving weight, is there any advantage I might be missing by using a wool baselayer rather than the U/A stuff? I have a couple so smell never was an issue, which is what I can see the issue being.
 
I haven't bought any base layer under armour in years but when i see it in stores it looks the same as my older stuff.

Imo Under armour is meant to wick moisture away from the skin, just like any other base layer. The second layer is to help get that layer dry and insulate(fleece, wool ect...) unless your using it for say football and the air temp is drying it. If it works for you i wouldnt spend the coin on new base layers. I always felt under armour took awhile to dry compared to some of the synthetic stuff i currently wear.

For wool as a baselayer i would suggest trying just one piece, wool next to skin doesn't work for me, I sweat too much and it doesn't dry out. But that again jmo.
 
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