Ryka Optimize Xt Women's Athletic Training Sneaker. Optimize every workout in this cross-trainer with our most premium materials and technology. BEST FOR: Sport agility and cross-training + High-intensity workouts. PERFORMANCE TECH: Exceptional stability and soft cushioning, proven in lab testing by Heeluxe + Skeletal Guidance System for exceptional built-in support under the arch. MADE FOR WOMEN FIT: Designed for a woman’s unique foot shape with a narrower heel, roomier toe, and softer foot cushioning. MATERIALS: Breathable fabric and durable faux leather + Padded IQ heel collar for extra cushioning. CLOSURE: Lace-up front for a secure fit. INSOLE: Premium anatomical insole with RE-ZORB® responsive cushioning for shock absorption. MIDSOLE: Lightweight EVA for soft cushioning + RE-ZORB cushioning at the forefoot. OUTSOLE: Durable rubber sole for traction + Pivot Point for smooth and easy turns. WEIGHT: 292 g/10.3 oz per shoe. HEEL-TO-TOE DROP: 6 mm. Model: RYKA-OPTIMIZE_XT.