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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.

$149.00
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
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