HeatGear® Armour is the original performance baselayer by Under Armour - the one you put on first and take off last. So they made it extra comfortable by wicking sweat and stretching so you can move no matter what.
      Material    
    
    Main fabric: 84% polyester, 16% elastane
Mesh: 92% polyester, 8% elastane
 
| Fit: | tight | 
| Color: | White | 
| Gender: | men | 
| Season: | Summer, Spring/Autumn | 
| Weight: | 500g | 
| Activity: | Run, Fitness | 
| Material: | Main fabric: 84% polyester, 16% elastaneMesh: 92% polyester, 8% elastane | 
| Item code: | UAM516623 | 
| Collection: | Autumn/Winter | 
| Model year: | 2023 | 
| Compression: | yes | 
| Manufacturer: | Under Armour | 
| Product name: | Under Armour Men's HeatGear® Armour Sleeveless - White/Black | 
| Sleeve length: | Sleeveless | 
| Textile fabric: | Synthetics |