Ryka Predecessor Women's Athletic Walking Sneaker. Feel the power of performance with every step in this premium sneaker that goes from walking to running with ease. BEST FOR: High-performance fitness walking + Light running. PERFORMANCE TECH: Full-length RE-ZORB® responsive cushioning for exceptional shock absorption and impact protection + Skeletal Guidance System for built-in support under the archMADE FOR WOMEN FIT: Designed for a woman’s unique foot shape, muscle movement, and build with a narrower heel, roomier toe, and softer foot cushioning. MATERIALS: Premium breathable engineered mesh + Padded collar for extra cushioning. CLOSURE: Lace-up front for a secure fit + Pull tabs for easy on/off. INSOLE: Premium anatomical insole with RE-ZORB® cushioning for shock absorption. MIDSOLE: Lightweight EVA for soft cushioning. OUTSOLE: Durable rubber sole partially made from recycled rubber. WEIGHT: 278g/9.81 oz per shoe. HEEL-TO-TOE DROP: 8 mm. Model: RYKA-PREDECESSOR.