When it is necessary to get from point A to point B as fast as possible, make sure you're wearing the Under Armour Assert IV Running Shoe. The formfitting, breathable mesh upper delivers lightweight performance while maximizing your mobility for an extremely flexible feel. A full-length Micro G midsole creates an incredibly lightweight and responsive ride, in order to heighten your enjoyment. The durable, solid rubber outsole provides lightweight traction and grip, while also increasing the longevity of the Assert IV Running Shoe. Imported.