HeatGear® Mock Sleeveless - White / Black - Under Armour

Super-light HeatGear® fabric delivers superior coverage without weighing you down. Mesh underarm &...

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Colour
Accent Colour
Size
Child Size UK

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Product Information

Full details

The Under Armour HeatGear Mock Sleeveless is a high-performance athletic garment designed for male athletes who require a lightweight, moisture-wicking base layer for intense training sessions. Its primary benefit is the combination of superior coverage and advanced ventilation, though the slim-fit design may feel restrictive for individuals who prefer a looser garment during casual wear.

All features

GenderMale
Age Groupadult
ColourWhite
FitSlim
Accent ColourBlack
MaterialPolyester
SizeS
Model Part Number1361521-100
BrandUnder Armour

Extended Product Information

FAQs

Is this top a compression fit?

Yes, it is designed with a slim-fit profile that provides a close-to-the-skin feel typical of compression gear.

Can I use this for outdoor training in the sun?

While the HeatGear technology is designed for warm conditions, always remember to apply sunscreen to exposed skin, as this garment does not cover the arms.

Why shouldn't I use fabric softener?

Fabric softeners coat the fibers of technical apparel, which prevents the material from wicking moisture and drying quickly as intended.

How should I store the garment?

Keep it in a cool, dry place and ensure it is completely dry before folding to prevent odors.

Is the material strictly polyester?

The body is composed of 84% Polyester and 16% Elastane, while the mesh panels are 92% Polyester and 8% Elastane.

Troubleshooting

Fabric feels less effective at wicking sweat over time

Ensure you are not using fabric softeners during wash cycles, as they leave a residue that clogs the pores of the moisture-wicking material.

Visible wear or loose threads

Check if the garment is being washed with items containing hooks, zippers, or velcro which can snag the lightweight mesh fabric.

Pros and Cons

Pros

  • Extremely lightweight and breathable construction
  • Rapid sweat-wicking properties keep you dry
  • Ergonomic seams prevent irritation during movement
  • Strategic mesh panels enhance cooling in critical zones

Cons

  • Slim-fit cut may be too tight for some body types
  • Requires specific care to avoid fabric damage
  • Not intended for use with fabric softeners

Setup, Compatibility & Care

To ensure the longevity of your HeatGear garment, follow these care instructions strictly:

  • Machine Wash: Use a cold cycle with like colors.
  • Bleaching: Only use non-chlorine bleach if absolutely necessary.
  • Drying: Tumble dry on a low setting.
  • Prohibitions: Do not iron, do not dry clean, and never use fabric softeners, as these can compromise the moisture-wicking performance of the synthetic fibers.