Adidas Lady Core 50 Cross Training Shoes Non-Marking Rubber Outsole - Great for indoor activities, leaving no trace of your workout behind. Circular Outsole Area - Encourages multi-directional movement, giving you enhanced reflexes being able to twist and turn faster. Female Specific Shoe - The shoe is designed in it's constructive elements to fit better to a feminine foot. Slimmer, sleeker and with a narrower outsole, the allows the female greater comfort and better reflexes during exercise. Inner Lined Padded Collar - Designed for greater comfort and breathability.