Under Armour Womens Micro G Ignite Running Shoe Aluminum/White/Bitter mesh Formfitting, breathable mesh upper delivers super lightweight performance Ultra-lightweight Micro G foam heel insert reduces impact Low profile ArmourBound midsole delivers maximum, full-length cushioning and maintains an even distribution of impact with every stride Full length 4D Foam sock liner conforms to your foot for customized fit Carbon rubber covers the impact and abrasion zones for long-lasting wear