Search  for anything...

Under Armour Men's Packaged Base 4.0 Crew T-Shirt

  • Based on 1,202 reviews
Condition: New
Checking for product changes
$100.00 Why this price?

Buy Now, Pay Later


As low as $16.67 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Mar 6
Order within 1 hour and 41 minutes
Available payment plans shown during checkout

Color: Black (001)/Pitch Gray


Size: Large


Features

  • Imported
  • Pull On closure
  • UA Base 4.0 Extreme Baselayer is our warmest yet, locking in your body's heat to deliver extreme warmth in the extreme cold
  • UA Scent Control Technology to keep you undetected in all pursuits
  • Soft, brushed grid interior traps air against your skin, closely managing your body's microclimate to keep you warm & comfortable
  • Material wicks sweat & dries really fast
  • 4-way stretch construction moves better in every direction

Description

UA Base™ 4.0 Extreme Baselayer is our warmest yet, locking in your body's heat to deliver extreme warmth in the extreme cold. UA Scent Control Technology to keep you undetected in all pursuits. Soft, brushed grid interior traps air against your skin, closely managing your body's microclimate to keep you warm & comfortable. Material wicks sweat & dries really fast. 4-way stretch construction moves better in every direction.


Product Dimensions ‏ : ‎ 11 x 5 x 5 inches; 1.15 Pounds


Item model number ‏ : ‎ 1353349


Department ‏ : ‎ mens


Date First Available ‏ : ‎ September 1, 2019


Manufacturer ‏ : ‎ Under Armour Apparel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Absolutely Amazing
Color: Black (001)/Pitch Gray Size: Small
This is the greatest under garment for cold weather. No jacket needed.
Reviewed in the United States on December 28, 2022 by Amazon Customer

  • The order was perfect
Color: Black (001)/Pitch Gray Size: 3X-Large
Everything was perfect
Reviewed in the United States on November 6, 2022 by chuck

  • Best Base Layer Available
Color: Black (001)/Pitch Gray Size: Medium
I engage in Skeet, Trap, and Sporting Clays, year 'round. In extreme cold, it's essential to maintain warmth, without bulk. Movement, and gun mount, must be as unrestricted as possible. Using Under Armour 4.0 as a base, combined with a densely woven acrylic sweater, under a lightly insulated snow boarding jacket, allows me to mount my shotgun, and follow the target through my break point, without a lot of bulky clothing getting in the way. I travel light, and stay warm, in bloody awful conditions. Under Armour provides the foundation. I switch to the 3.0, and 2.0 weights, when temps moderate. There are lesser products, that will keep me warm, but the bulk won't work for me, when shooting. ... show more
Reviewed in the United States on April 29, 2022 by tjb357452

  • Not impressed
Color: Black (001)/Pitch Gray Size: X-Large
Warm.. just not as effective as I had hoped. I was expecting more warmth than my generic base layers from Costco. Everything else is on point. Just not that warm for the price. I’ll stick with Merino wool for half the price
Reviewed in the United States on October 15, 2022 by Dirk

  • Keeping warm and wicks away moisture
Color: Black (001)/Pitch Gray Size: X-Large
Comfortable to to wear as a baselayer or on its own.
Reviewed in the United States on August 14, 2022 by Sonny

  • Great
Color: Black (001)/Pitch Gray Size: Large
Was skeptical about price but well worth it.
Reviewed in the United States on June 23, 2022 by Jr

  • Quite expensive but my warmest thermals.
Color: Black (001)/Pitch Gray Size: Large
It was really expensive but it was my warmest last defense against brutally cold weather. I used it only in subzero temperature range and only needed to them 2 or 3 times during winter (I live in the New York City metropolitan area). So it did it’s job but I used it only in extreme cold weather.
Reviewed in the United States on February 1, 2022 by Paul Y.

  • Great product
Color: Black (001)/Pitch Gray Size: Large
The product fit as expected. Purchased this product as a layer for winter and it didn’t disappoint. I highly recommend it.
Reviewed in the United States on March 29, 2022 by Ram B

Can't find a product?

Find it on Amazon first, then paste the link below.