Newton SIR ISAAC Men's Trainer.
Offering intelligent control, the Sir Isaac Neutral Guidance Running Shoe sold at Sports World Hong Kong is designed for runners of all levels who are committed to Natural Running. Whether you follow Chi, Pose, Evolution, barefoot running or just want to run better, the Sir Isaac allows you to run naturally — with greater efficiency and less overuse injuries (like achilles tendonitis and plantar fasciitis). Recommended for any distance and general fitness, walking or working out in the gym.
