Stuff I Use: UnderArmour ColdGear Base 4.0 Crew

Regular readers of currentseams will know that I tend to run cold. So when it comes to winter fly fishing (a very poor choice of hobby for me) I need all the warmth I can get. I’d been using an old-school UnderArmour ColdGear compression-style mock neck as a base layer for years, but it was getting a little sketchy, so now was a good time to explore new options.

The UnderArmour ColdGear Base Leggings have served me well for a couple years now and I love them. So migrating to the UnderArmour ColdGear Base 4.0 Crew seemed like a no brainer. (It was.) Here’s the gist, taken from the UA site: “UA Base 4.0 is a men’s baselayer built for extreme cold weather and lower activity. It uses a unique pattern that’s designed to trap heat without adding bulk. Think long underwear, revamped for today’s top athletes.”

At $80, this top isn’t cheap. Quite frankly, I’m a value guy. So if something costs more than I’d like to pay, but it does what it’s supposed to do and I use it a lot — never underestimate the power of amortization — I’m going all in. This version is far warmer than my previous UA top. My only complaint is that I have sensitive skin (wool is out unless I have a solid base layer) and the brushed grid interior on this shirt bugs me just a wee bit. Not to worry — I just wear a breathable UA crew t-shirt beneath and I’m good to go.

Price: $80

Rating: ****1/2

Why is this man smiling? Besides holding a beautiful fish, he’s not shivering even though it’s below freezing. Beneath all of this is my ColdGear Base 4.0 Crew. Full disclosure: I am not connected to UA in any way.

6 comments on “Stuff I Use: UnderArmour ColdGear Base 4.0 Crew

  1. john pavao says:

    Great report- thank you.The old fashion cotton thermals work for non arrobic activity but suck if you work up a sweat of any type.they capture moisture and you stay cold and wet. We converted to the wicking materials years ago – makes a world of difference- even when sedentary.  


  2. david says:

    I run cold too and purchased a heated vest and it has been the best solution.

  3. James Joseph Berry says:

    where do you buy above,

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