Under Armour Womens Go Running Shoe Black Inspired by a track & field shoe, the Women's UA Go features a slim fit - we recommend you size-up a full shoe size for optimal comfort Ultra-lightweight mesh uppers deliver breathability and very little weight, to keep you fast on your feet ArmourBound midsole delivers maximum, full-length cushioning and maintains an even distribution of impact throughout your gait cycle Solid rubber outsole adds durability and protection without too much bulk or weight