New Fall Arrivals—Our Top Trends To Chase
Home Page

Detail Images

Current Color

Under Armour Base 4.0 Crew - Women's

$79.99

Color:
Size:

Base 4.0 Crew

When it's bitingly cold outside, layer up with the Under Armour Base 4.0 Crew. Made with thermal grid fleece, this low-bulk top provides huge warmth without weighing you down. Anti-odor technology fends off funky odors, and flatlocked seams provide a comfortable fit. The fitted design keeps it tight enough pull moisture away from your body, but loose enough that you don't get the uncomfortable squeeze of a compressive layer. Built-in thumbholes keep the sleeves from bunching when you layer over this top.

  • Heavyweight baselayer for low activity levels in cold conditions
  • Soft grid interior locks in body heat for warmth in extreme cold
  • Fabric wicks moisture and dries quickly for comfort during activity
  • 4-way stretch material allows a full range of natural movement
  • UA Scent Control Technology repels unwanted odors for freshness
  • Thumbholes secure the sleeves when you're layering on cold days
  • Raglan sleeves enhance comfort when layering and wearing a pack
  • Item #UND02R5

Material
81% polyester, 19% elasterell
Insulation Weight
heavyweight
Fit
slim
Style
crew
Thumbholes
yes
Anti-Odor
UA Scent Control Technology
Recommended Use
all-mountain skiing, all-mountain snowboarding, freeride/powder skiing, freeride/powder snowboarding, hiking, mountaineering, river fishing, saltwater fishing, ski mountaineering, snowshoe hiking, stillwater fishing, winter camping
Manufacturer Warranty
limited lifetime

Tech Specs

What do you think about this product?

View

>Rating: 5

Warm Lite Activity Winter Ware

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size
Size Bought
Medium
Height
5` 5"
Weight
140 lbs

I bought these under armour base layers for my girlfriend. She doesn't like too many winter activists because she gets really cold quickly. She took them skiing this year and told me that she was really warm and even had to take off an extra layer because she got too warm. Her comment was that these are great for leisure activities, but they will make you sweat if you're too active. She also mentioned that it leaves a waffle pattern on her skin, which she thought was funny. Lol!

>Rating: 5

Warm Baselayer

Familiarity:
I gave it as a gift but have feedback to share
Fit:
True to size
Size Bought
Small
Height
5` 5"
Weight
120 lbs

This baselayer has been great for all cold weather activities. I also purchased the 3.0 layer and pull this one out for the colder days.

>Rating: 5

Super Warm Under Armor Base Layer

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size

This base layer is amazingly warm. This is definitely for really cold days, way too thick for warmer days.

>Rating: 5

Warm

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
large
Height
5` 5"
Weight
130 lbs

Just what I wanted. I'm always cold and this keeps me warm. I use it as a base layer skiing. Glad I made the purchase. Love the long sleeves with thumb holes.

>Rating: 5

Best ever

Familiarity:
I've used it several times
Fit:
Runs small

I wore this to a freezing football game. But I was toasty warm and enjoyed every second 10 times more than I ever would have otherwise. Must buy.

>Rating: 5

Awesome Product

Familiarity:
I've used it several times
Fit:
Runs small

I wore this to a freezing football game. But I was toasty warm and enjoyed every second 10 times more than I ever would have otherwise. Must buy.

>Rating: 5

Comfy, cozy and warm!

Worlds worst thing is when your girlfriend has to take a break on a powered day because she's cold. This under armor gear was a game changer for her and me. I got these for her and we rode the whole day. She loved how long the shirt is so it stayed ticked in and how breathable, comfortable, and most importantly warm the base layer left her! Excellent purchase and would recommend it to anyone who tends to get cold easily.

>Rating: 4

Nice top, would be very warm

Familiarity:
I returned this product before using it
Fit:
True to size

I ordered this to wear on a Yellowstone cross-country ski outing. I'm returning it because it was heavier than I wanted. More details in the description would have been helpful - the box this top comes in says it is for "Coldest Conditions, Low Activity" . As far as fit, the sleeves and body are nice and long. it is close fitting which you want in a base layer. It is a thick material, very different from the Patagonia Thermal Weight Capilene which I decided to keep.

>Rating: 5

Comfortable

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
small
Height
5` 3"
Weight
120 lbs

I have bought the 1.0, 3.0 and now the 4.0. I put this on as my first layer and basically my only layer because it keeps me so warm. It is very soft. It is true to size and is stretchy so you can move without feeling like your shirt is twisting different ways like some of my other shirts do.

>Rating: 5

Best base layer!

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
Medium
Height
6` 0"
Weight
150 lbs

The 4.0 baselayer has been an incredible addition to my layering system. It is great for fall/spring/winter hikes, and even keeps me warm when I am fishing.

>Rating: 4

Very warm

This shirt is very warm and makes a great mid layer for skiing on cold days. The weight is pretty similar to a Patagonia R1 fleece and it's a pretty athletic cut. Room for a base layer or t shirt underneath without being too bulky to layer on top of this. My wife got this since she likes the coldgear compression shirts for skiing on warmer days and really likes the added warmth that this shirt brings