Ecco - Flexor Slip On (Black) - Women's: ECCO Flexor Ladies has a soft touch and smooth lines that add character and contrast. Uppers made of leather or nubuck are soft and comfortable. Specially developed finishing technique provides a unique new look. Leather and textile lining allows the foot to breathe. Interchangeable full leather insole with Super Soft comfort zones provides extra comfort and cushioning. Two component sole unit features a midsole made of Freon-free polyurethane and an outsole made of Thermoplastic polyurethane.