Offering intelligent control, the Newton Lady Isaac neutral guidance trainer is designed for runners of all levels, including beginners, 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.

The Newton Guidance Trainer vs the Newton Performance Trainer? The Guidance Trainer Features:

• Beveled Heel and Toe: guides footstrike easily into the midfoot/forefoot
• Beveled Lugs: feels smoother, more stable and gradual in the forefoot
• Wider midfoot/forefoot and lugs: added stability, creating a softer feel
• Midfoot Chassis/Shank: added support and stability
• Carbon Rubber Outersole: increased durability
• Closed Mesh on Upper: keeps small debris out

For new customers, Newton shoes tend to fit smaller than many common running shoes. With every shoe there is an adjustment period.

GREEN FEATURES

• 100% recycled laces, webbing, insole top cover
• 100% recycled PET upper mesh
• 100% recycled box, packaging
• 10% recycled outersole rubber