Under Armour Boys' ColdGear Armour Mock Neck Long Sleeve Shirt

Under Armour Boys' ColdGear Armour Mock Neck Long Sleeve Shirt


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Guaranteed Holiday Delivery

Let our no-worries policy put your shopping stress at ease this holiday! Purchase eligible items and choose the appropriate shipping option at checkout. Your order's arrival on or by Tuesday, December 24 is guaranteed - or it's FREE! See details below.

Guaranteed for Holiday delivery

Legal Terms & Conditions

  • For orders where delivery is not made or attempted by end of day on Tuesday, December 24, 2019, for the eligible item(s), we will credit your account in an amount equal to the purchase price of the item(s) in accordance with this offer
  • Please note, credits are not automatically applied to your account and must be requested
  • To request your credit, call Customer Service at 1-855-821-6911 starting Thursday, December 26, 2019 thru 11:59 PM PT Friday, January 3, 2020
  • Please note that this promotion may be terminated or modified at any time without notice
  • Delivery Methods are listed at checkout
  • All shipping costs are the responsibility of the customer
  • This program applies to:
    • Eligible items indicated with the "Guaranteed Holiday Delivery" tag
    • Delivery Methods: Orders received and cleared credit authorization before 1:00 PM EST (10:00 AM PT) on Friday, December 20, 2019, for Standard Shipping, or before 2:59 AM EST Monday December 23, 2019 (11:59 PM PT on Sunday December 22, 2019) for Express Shipping
    • Orders shipped to a valid address in the contiguous United States
    • Attempted delivery on or before Tuesday, December 24, 2019, satisfies this offer
  • This program does NOT apply to:
    • Customized items, special orders, gift cards, items on backorder or cancelled orders (e.g., out-of-stock merchandise)
    • Shipments to Alaska, Hawaii and U.S. territories and possessions
    • Shipments to P.O. boxes or APO/FPO addresses
    • Orders where the required Delivery Method (as set forth above) was not selected at the time of checkout
    • Orders delayed by shipping carriers, acts of war, terrorism, acts of nature, or other events beyond our control
    • Previous purchases
  • For any questions, please contact Customer Service at 1-855-821-6911

Guaranteed for Holiday Delivery. details.

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Standard Ground Service Available

Product Information

Keep your little athlete warm this cold weather season with the Under Armour® Boys' ColdGear® Armour Mock Neck Long Sleeve Shirt. Dual-layer ColdGear® fabric combines a quick-drying exterior and heat-trapping interior to deliver ultimate protection from the elements without weighing him down. Anti-odor technology keeps his gear fresh, and four-way stretch moves with him. Watch your superstar dominate any challenge in the UA ColdGear® Mock Neck Top.


  • Fitted long sleeve shirt
  • Smooth ColdGear® material uses a dual layer system to protect him from the elements
  • Sleek, quick-drying exterior layer helps him stay dry
  • Soft, brushed interior lining traps heat to keep him warm
  • Lightweight, 4-way stretch fabrication moves with him during activity
  • Signature Moisture Transport System wicks sweat away from the body
  • Antimicrobial technology eliminates the growth of odor causing microbes
  • Fabric Content: Polyester / elastane
  • Style: 1288343B
  • Under Armour
  • Brand : Under Armour
  • Country of Origin : Imported
  • Style : 1288343B
  • Fabric : Polyester / elastane

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