New missing retail box Under Armour Women's Charged Impulse 2 Knit Running Shoe Size 5.5 M Product details Care Instructions Machine Wash Origin Imported Sole Material Rubber Outer Material Acrylic Country of Origin China About this item Under Armour’s mission is to make all athletes better through passion, design and the relentless pursuit of innovation. Where have we started? It all started with an idea to build a superior T-shirt. The technology behind Under Armour's diverse product assortment for men, women and youth is complex, but the program for reaping the benefits is simple: wear Heat Gear when it's hot, ColdGear when it's cold, and Allseason Gear between the extremes.