Sir Isaac Wide
Neutral Guidance Trainer
The Sir Isaac (Wide) Neutral Guidance Trainer accommodates a EE width and is designed for all runner types for everyday base-building and slower-paced running. Like all Newton shoes, the Sir Isaac offers highly responsive cushioning and ground feel, with a more level-to-the-ground platform and lighter weight. As our most traditional, structured and supportive running shoe, the Sir Isaac helps you transition into the Newton running experience.
Through the end of June, Newton Running will donate $5 to Red Cross Colorado for every shoe purchased to benefit Black Forest fire victims.
- Item number:
- M02110
- Weight:
- 10.9 ounces
- Heel-to-toe drop:
- 4.5mm
UPPER
- Highly-breathable closed mesh
- Slip-proof laces with heel-securing double eyelets
- Lightweight ergonomic support strapping
- Metatarsal stretch panels for foot adjustment
- Reflective logo and heel tab
MIDSOLE
- Single-density, high-rebound EVA
- Second generation Action/ReactionTM technology in the midfoot and heel
- Midfoot support chassis for added stability
- Beveled heel and toe
- Met-flex enhanced midfoot flexibility
- Enhanced sock-liner that increases energy return and protection
- Accommodates most orthotics
OUTERSOLE
- Durable high-traction actuator lugs
- Increased toe spring
- Pronounced heel rocker
- High-wear carbon rubber with traction tread
Sir Isaac Wide
Perfect for people who are transitioning from a heel-strike, who like more support or who run/walk. More on finding your foot type Here.
- Foot type:
- Neutral
- A/R Technology:
- Forefoot & Heel
- Heel-to-toe drop:
- 4.5mm
- Forefoot:
- 4 Lug Carbon Rubber Technology
- Heel:
- Carbon Rubber
Compare to:
Perfect for the runner transitioning to a midfoot strike and is currently using lightweight footwear. More on finding your foot type Here.
- Foot type:
- Neutral
- A/R Technology:
- Forefoot & Heel
- Heel-to-toe drop:
- 3mm
- Forefoot:
- 4 Lug Rubber Technology
- Heel:
- Carbon Rubber

