The Quantum blends contemporary athletic appeal with slip-on ease, professional good looks and Nurse Mates' renowned comfort technologies Tumbled, premium leather uppers feature a stain-resistant finish. Lightweight blown EVA bottoms with a full rubber outsole for slip resistance and longer wear. Pillow Top(TM) insole system with DRYZ moisture management technology. Tempered steel shanks provide stability during the walking motion. Ultra-flexible strobel construction. Heel height 1-2/8"