Under Armour Hopes You'll Get a Rush From Its Pop-Up

The apparel brand has teamed up with Giant Spoon to promote its heat-activated line

Last month, Under Armour debuted its Rush line of clothing, which the company developed with the textile-tech company Celliant to turn athletes’ body heat into energy that resupplies their muscles. However, that’s not the easiest thing to explain. So Under Armour created a pop-up in New York City to walk people through it.