Under Armour’s mineral-infused fabric technology that reflects body heat is called UA Rush.
Under Armour introduced UA RUSH in 2019 through a partnership with Celliant. The fabric incorporates minerals intended to absorb energy from the body and convert it into infrared energy, which is then re-emitted toward the wearer’s tissues. Under Armour markets the technology for training, performance and recovery apparel.
UA RUSH is easy to confuse with Under Armour’s other named technologies. HeatGear is designed for hot-weather conditions, ColdGear for cold-weather use, and Storm refers to water-resistant or weather-protective treatments. Those names describe different apparel functions rather than the mineral-based infrared concept.
The technology’s proposed physiological benefits are part of Under Armour’s product claims and should not be confused with the fabric’s basic identity. In a quiz, the distinctive combination of minerals, body heat and infrared reflection points specifically to UA RUSH.