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Men's Isaac

$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 14 reviews
93%
(13)
7%
(1)
0%
(0)
0%
(0)
0%
(0)
A
ArchAngel

Bought the Isaac’s again for a second time in less than two months. Only because I put 318 miles on my first pair already. Love these shoes, the cushioning and balance in this shoe is amazing. Just try it out. You will be pleasantly surprised.

J
Joe B
Good cushion

I'm 66 and have knee trouble creeping in. Noticeably less pounding on knees and hips with the Isaacs.

R
Ron Newton
Bullet Proof!

Perfect all around shoe. Waking, Running,
Stabilizing.
Always looks good or inconspicuous.

A
ArchAngel

The Isaac’s are incredible. Gives you plenty of cushioning for long or short runs. Try it out. You won’t be disappointed.

S
Stuart Lamp
Good Update

This was my first pair of Newton’s since 2017. I love the brand, but wanted shoes with a little more cushion. I saw the update to the Isaac and wanted to give it a try. I am impressed with the update. The shoe is responsive, but comfortable for long runs. The cushioning is just right and saves the legs and is springy. Great update and I look forward to seeing more updates the brand has in store.

Customer Reviews

Based on 14 reviews
93%
(13)
7%
(1)
0%
(0)
0%
(0)
0%
(0)
A
ArchAngel

Bought the Isaac’s again for a second time in less than two months. Only because I put 318 miles on my first pair already. Love these shoes, the cushioning and balance in this shoe is amazing. Just try it out. You will be pleasantly surprised.

J
Joe B
Good cushion

I'm 66 and have knee trouble creeping in. Noticeably less pounding on knees and hips with the Isaacs.

R
Ron Newton
Bullet Proof!

Perfect all around shoe. Waking, Running,
Stabilizing.
Always looks good or inconspicuous.

A
ArchAngel

The Isaac’s are incredible. Gives you plenty of cushioning for long or short runs. Try it out. You won’t be disappointed.

S
Stuart Lamp
Good Update

This was my first pair of Newton’s since 2017. I love the brand, but wanted shoes with a little more cushion. I saw the update to the Isaac and wanted to give it a try. I am impressed with the update. The shoe is responsive, but comfortable for long runs. The cushioning is just right and saves the legs and is springy. Great update and I look forward to seeing more updates the brand has in store.