Under Armour Women's Assert II Running Shoe White/Neo Pulse/Steel mesh Formfitting, breathable mesh upper delivers super lightweight performance Low profile ArmourBound midsole delivers maximum, full-length cushioning and maintains an even distribution of impact in every stride 4D Foam foot bed conforms to your foot's exact shape, eliminating slippage for the ultimate locked-in fit Durable foam covering gives full ground contact without adding any extra weight