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Men's Isaac

$94.00  $145.00

Meet The New Isaac

Introducing our most cushioned model ever, powered by a super stack of ultra plush NRG+ foam and a new generation of ART™ technology to create the perfect balance of cushion and springiness to take your run in entirely new directions

Sustainably Constructed, Certified Vegan


New to Newton? We fit snug for most. Add a 1/2 size for best fit. (US Sizing Displayed)


Men's Isaac Details

Men's Isaac

specifications

  • * Weight: 9.2oz
  • * Drop: 8.0mm
  • * Support: Neutral
  • * Certified Vegan
  • * Sustainably Constructed
Men's Isaac

upper

  • * Anatomically designed air-mesh
  • * Plush, seamless anti-friction linings
  • * Perforated tongue for breathability 
  • * Multi-positional lacing system 
  • * Upper constructed of 100% recycled materials
Men's Isaac

sole technology

  • Energized NRG+™ Foam
  • XPS+ Pebax® plating system
  • * Split-lug Action Reaction Technology™
  • Hytrel® foam footbed

What Makes Newton Unique?


Men's Isaac Side View

More Foam, More Fun

Our first super cushion shoe combines next gen NRG+™ and Hytrel® foams to minimize impact while the sculpted rocker geometry is designed to amplify forward momentum and minimize weight. The result? An amazingly soft but versatile shoe that feels just as great logging long miles as it does wearing around casually.

Men's Isaac Bottom View

Next Level Technology

The new Split-Lug Action Reaction Technology™ is designed to maximize rebound for a smoother, more energetic ride. Equipped with 8 independent flex lugs that compress and spring back like a trampoline, they reduce impact and return energy with each stride and work in harmony with the XPS+ Peebax plate to keep you stable and in total control.

Men's Isaac

Crafted For Comfort

The Adaptive-Fit seamless air mesh molds to the shape of your foot and lets air flow freely; while features like a non-friction lining and multi-positional lacing system provide the security and comfort that makes it feel like it was built just for you.

Men's Isaac
Men's Isaac

What Our Runners Think

Customer Reviews

Based on 38 reviews
84%
(32)
11%
(4)
3%
(1)
0%
(0)
3%
(1)
W
Whitney

Love these shoes…I’m on my feet a lot and these shoes help keep my feet from hurting.

V
Vincent

Might need a different insole for my rt. Foot but other than that they are a dream

Y
Yerlan
Great shoes

Just great shoes as everything in Newton

S
Seth Grissett
Seth MG

These shoes are amazing. The sole/footbed is the best I've ever run in and facilitates midfoot running even with the extra cushioning.

D
David Topham
Almost a perfect shoe

I have always loved running in Newton shoes. It is the fit and feel of the upper that feels perfect for me. This one however, I found the midsole just slightly too soft. With perfect form, you will really enjoy the feel.

Customer Reviews

Based on 38 reviews
84%
(32)
11%
(4)
3%
(1)
0%
(0)
3%
(1)
W
Whitney

Love these shoes…I’m on my feet a lot and these shoes help keep my feet from hurting.

V
Vincent

Might need a different insole for my rt. Foot but other than that they are a dream

Y
Yerlan
Great shoes

Just great shoes as everything in Newton

S
Seth Grissett
Seth MG

These shoes are amazing. The sole/footbed is the best I've ever run in and facilitates midfoot running even with the extra cushioning.

D
David Topham
Almost a perfect shoe

I have always loved running in Newton shoes. It is the fit and feel of the upper that feels perfect for me. This one however, I found the midsole just slightly too soft. With perfect form, you will really enjoy the feel.