PUMA Faas 600 running trainers. These running trainers are specially designed for women. They are stable & flexible with a shape specially designed with women in mind. Ideal for the more traditional stability runner who heel strikes, the Faas 600 has an 8 mm heel-to-toe drop which encourages runners to midfoot strike. Running trainers. Lace-up fastening. Low cut synthetic mesh uppers. Synthetic fabric cushioning. Rubber sole.