Sir and Lady Isaac Product Details

We’ve had some recent requests to post information on the new Sir and Lady Isaac shoes that are now available on Newton Running.

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The Sir and Lady Isaac’s intelligent control is great for all foot types. The Isaac is a neutral guidance trainer designed for runners committed to improving their running form to the more efficient midfoot/forefoot running style.

UPPER

  • Highly breathable, fast-drying, closed mesh
  • Slip-proof laces with heel-securing double eyelets
  • Lightweight ergonomic support strapping
  • Metatarsal stretch panels
  • Reflective logo and heel tab

MIDSOLE

  • Single-density, high rebound EVA that stabilizes all foot types
  • Second generation Action/Reaction Technology™ forefoot and heel
  • Midfoot/rearfoot support chassis for added stability
  • Beveled heel and toe
  • Met-flex enhanced forefoot flexibility
  • Enhanced sock-liner that increases energy return and protection
  • Accommodates orthotics

OUTERSOLE

  • Second generation durable, high traction actuator lugs
  • Increased toe spring
  • Pronounced heel rocker
  • High-wear carbon rubber with traction tread

Get your Lady Isaac S or Sir Isaac S shoes today!