Fabric Imported Rubber sole Surface: Road. Differential: 3 mm. Ideal for high-mileage endurance training and racing. Adaptive Fit Air Mesh upper with a seamless construction for a comfortable, breathable fit. Advanced lacing system for a secure and comfortable fit. Anatomically designed skeletal tongue fits perfectly to the foot for easy comfort. Cushioned collar for added comfort. Breathable mesh lining offers a great in-shoe feel. Full-length cushioned footbed for excellent underfoot comfort. Newtonium Cushioning The easy responsiveness, superior support, and reliable stability of the Newton? Motion 8 running shoe will have you ready to run far and wide. Predecessor: Motion 7. Support Type: Overpronation/Stability. Cushioning: High energizing cushioning.