HeatGear® Armour is our original performance baselayer—the one you put on first and take off last.

So we made it extra comfortable by wicking sweat and stretching so you can move no matter what.

Machine wash cold with like colors.

Use only non-chlorine bleach when needed.

Tumble dry low.

Do not iron.

Do not use softeners.

Do not dry clean.

HeatGear® Armour is our original performance baselayer—the one you put on first and take off last.

So we made it extra comfortable by wicking sweat and stretching so you can move no matter what.

Machine wash cold with like colors.

Use only non-chlorine bleach when needed.

Tumble dry low.

Do not iron.

Do not use softeners.

Do not dry clean.

UNDER ARMOUR HeatGear Armour Mock Long Sleeve Base Layer

Equip the young athlete for peak performance with the UNDER ARMOUR HeatGear Armour Mock Long Sleeve Base Layer, the ultimate foundation for any sport or activity. This isn´t just another shirt; it´s a critical piece of performance gear designed to work as hard as they do. As the original innovator in performance apparel, Under Armour sets the standard.

HeatGear® Armour is our original performance baselayer—the one you put on first and take off last.

So we made it extra comfortable by wicking sweat and stretching so you can move no matter what.

Built from an advanced synthetic fabric, this long sleeve T-shirt is incredibly lightweight and features an ultra-soft, smooth finish for extreme comfort with a barely-there feel. The fitted design offers a streamlined silhouette that moves with the body, providing a supportive feel without the squeeze of compression. This allows for complete focus on the game, not on uncomfortable, bulky clothing.

The core benefit of this base layer lies in its superior moisture management. The signature material actively wicks sweat and moisture away from the skin, pulling it to the fabric´s surface where it can evaporate rapidly. This keeps the wearer dry, light, and comfortable, preventing the chill and drag that comes from sweat-soaked gear. For added breathability, it features strategic mesh panels on the underarms and back, providing essential ventilation in high-heat zones to help regulate body temperature during intense exertion.

Freedom of movement is non-negotiable. The innovative 4-way stretch construction ensures this top moves better in every direction, allowing for an unrestricted range of motion whether they´re swinging, throwing, running, or stretching. Further enhancing comfort and durability, the ergonomic design keeps all seams off high-abrasion areas, significantly reducing the risk of chafing and irritation during repetitive movements.

The mock neck construction provides a touch of extra coverage and protection from the elements, making it a versatile choice for various conditions. A dropped, shaped hem ensures enhanced back coverage that won´t ride up, keeping the shirt securely in place through every drill and play. This pull-on design is simple and effective, with no zipper to get in the way. As a practical touch for team environments, it includes a write-in locker tag for their name or number. This Boys´ long sleeve base layer is the essential first step to building a complete athletic uniform.

Technical Specifications:

* Product Type: Long Sleeve Base Layer T-Shirt
* Gender: Boys
* Sleeve Length: Long sleeve
* Neckline: Mock Neck (Round)
* Material Type: Advanced Synthetic Fabric
* Key Features: 4-Way Stretch, Superior Moisture-Wicking System, Quick-Drying, Strategic Mesh Ventilation
* Construction: Ergonomic seam placement, Dropped shaped hem
* Closure: Pull-on design (Without zipper)
* Special Feature: Write-in locker tag

UNDER ARMOUR HeatGear Armour Mock Long Sleeve Base Layer

Equip the young athlete for peak performance with the UNDER ARMOUR HeatGear Armour Mock Long Sleeve Base Layer, the ultimate foundation for any sport or activity. This isn´t just another shirt; it´s a critical piece of performance gear designed to work as hard as they do. As the original innovator in performance apparel, Under Armour sets the standard.

HeatGear® Armour is our original performance baselayer—the one you put on first and take off last.

So we made it extra comfortable by wicking sweat and stretching so you can move no matter what.

Built from an advanced synthetic fabric, this long sleeve T-shirt is incredibly lightweight and features an ultra-soft, smooth finish for extreme comfort with a barely-there feel. The fitted design offers a streamlined silhouette that moves with the body, providing a supportive feel without the squeeze of compression. This allows for complete focus on the game, not on uncomfortable, bulky clothing.

The core benefit of this base layer lies in its superior moisture management. The signature material actively wicks sweat and moisture away from the skin, pulling it to the fabric´s surface where it can evaporate rapidly. This keeps the wearer dry, light, and comfortable, preventing the chill and drag that comes from sweat-soaked gear. For added breathability, it features strategic mesh panels on the underarms and back, providing essential ventilation in high-heat zones to help regulate body temperature during intense exertion.

Freedom of movement is non-negotiable. The innovative 4-way stretch construction ensures this top moves better in every direction, allowing for an unrestricted range of motion whether they´re swinging, throwing, running, or stretching. Further enhancing comfort and durability, the ergonomic design keeps all seams off high-abrasion areas, significantly reducing the risk of chafing and irritation during repetitive movements.

The mock neck construction provides a touch of extra coverage and protection from the elements, making it a versatile choice for various conditions. A dropped, shaped hem ensures enhanced back coverage that won´t ride up, keeping the shirt securely in place through every drill and play. This pull-on design is simple and effective, with no zipper to get in the way. As a practical touch for team environments, it includes a write-in locker tag for their name or number. This Boys´ long sleeve base layer is the essential first step to building a complete athletic uniform.

Technical Specifications:

* Product Type: Long Sleeve Base Layer T-Shirt
* Gender: Boys
* Sleeve Length: Long sleeve
* Neckline: Mock Neck (Round)
* Material Type: Advanced Synthetic Fabric
* Key Features: 4-Way Stretch, Superior Moisture-Wicking System, Quick-Drying, Strategic Mesh Ventilation
* Construction: Ergonomic seam placement, Dropped shaped hem
* Closure: Pull-on design (Without zipper)
* Special Feature: Write-in locker tag

UNDER ARMOUR HeatGear Armour Mock Long Sleeve Base Layer

Equip the young athlete for peak performance with the UNDER ARMOUR HeatGear Armour Mock Long Sleeve Base Layer, the ultimate foundation for any sport or activity. This isn´t just another shirt; it´s a critical piece of performance gear designed to work as hard as they do. As the original innovator in performance apparel, Under Armour sets the standard.

HeatGear® Armour is our original performance baselayer—the one you put on first and take off last.

So we made it extra comfortable by wicking sweat and stretching so you can move no matter what.

Built from an advanced synthetic fabric, this long sleeve T-shirt is incredibly lightweight and features an ultra-soft, smooth finish for extreme comfort with a barely-there feel. The fitted design offers a streamlined silhouette that moves with the body, providing a supportive feel without the squeeze of compression. This allows for complete focus on the game, not on uncomfortable, bulky clothing.

The core benefit of this base layer lies in its superior moisture management. The signature material actively wicks sweat and moisture away from the skin, pulling it to the fabric´s surface where it can evaporate rapidly. This keeps the wearer dry, light, and comfortable, preventing the chill and drag that comes from sweat-soaked gear. For added breathability, it features strategic mesh panels on the underarms and back, providing essential ventilation in high-heat zones to help regulate body temperature during intense exertion.

Freedom of movement is non-negotiable. The innovative 4-way stretch construction ensures this top moves better in every direction, allowing for an unrestricted range of motion whether they´re swinging, throwing, running, or stretching. Further enhancing comfort and durability, the ergonomic design keeps all seams off high-abrasion areas, significantly reducing the risk of chafing and irritation during repetitive movements.

The mock neck construction provides a touch of extra coverage and protection from the elements, making it a versatile choice for various conditions. A dropped, shaped hem ensures enhanced back coverage that won´t ride up, keeping the shirt securely in place through every drill and play. This pull-on design is simple and effective, with no zipper to get in the way. As a practical touch for team environments, it includes a write-in locker tag for their name or number. This Boys´ long sleeve base layer is the essential first step to building a complete athletic uniform.

Technical Specifications:

* Product Type: Long Sleeve Base Layer T-Shirt
* Gender: Boys
* Sleeve Length: Long sleeve
* Neckline: Mock Neck (Round)
* Material Type: Advanced Synthetic Fabric
* Key Features: 4-Way Stretch, Superior Moisture-Wicking System, Quick-Drying, Strategic Mesh Ventilation
* Construction: Ergonomic seam placement, Dropped shaped hem
* Closure: Pull-on design (Without zipper)
* Special Feature: Write-in locker tag