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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
Learn More About Newton's Technology

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 33 reviews
88%
(29)
6%
(2)
3%
(1)
0%
(0)
3%
(1)
100.0
C
Carl Sivertsen
Too soft for me

Show is comfortable but to soft for me. The original Sir Isaac had a better feel for me as I supinate

B
Bobby Thomas
Amazingly comfy, super easy to break in

First pair of high cushion shoe I’ve owned after trying to push higher mileage and avoid injury. Took about 1 run to break in and feel confident in. Take them on 10-15 mile runs now and feel great in them, highly recommended

A
Adam Klepetar
New to Newton

My friend recommended Newton's to me and I was ready for something new. I've been training for a half marathon in my new Issac's and they are perfect! I love the way they are so lightweight and also at cushion. They combine a sense of stability with support and speed. I won't be changing shoe brands again soon!

R
RB
Comfortable Running shoes

I've been a loyal user of Newton Distance shoes for both training and racing over the years, and they've always been my go-to choice. Recently, I tried the Newton Isaac model and was pleasantly surprised by the comfort it offers, making it an excellent choice for recovery runs. It's important to note that the Isaac model features an 8 mm drop, which is different from the 4 mm drop found in the Distance and Gravity models. Additionally, I'd like to highlight Newton's exceptional customer service, which has consistently enhanced my experience with their products.

R
Red running in to water.
Comfortable shoe

Glad I purchase running shoes, the most comfortable shoes I’ve worn. I’m 6’ tall & 215 pounds. These shoe give me energy bounce back in every step. I would highly recommend to a person that’s a little on heavy side.

123

Customer Reviews

Based on 33 reviews
88%
(29)
6%
(2)
3%
(1)
0%
(0)
3%
(1)
100.0
C
Carl Sivertsen
Too soft for me

Show is comfortable but to soft for me. The original Sir Isaac had a better feel for me as I supinate

B
Bobby Thomas
Amazingly comfy, super easy to break in

First pair of high cushion shoe I’ve owned after trying to push higher mileage and avoid injury. Took about 1 run to break in and feel confident in. Take them on 10-15 mile runs now and feel great in them, highly recommended

A
Adam Klepetar
New to Newton

My friend recommended Newton's to me and I was ready for something new. I've been training for a half marathon in my new Issac's and they are perfect! I love the way they are so lightweight and also at cushion. They combine a sense of stability with support and speed. I won't be changing shoe brands again soon!

R
RB
Comfortable Running shoes

I've been a loyal user of Newton Distance shoes for both training and racing over the years, and they've always been my go-to choice. Recently, I tried the Newton Isaac model and was pleasantly surprised by the comfort it offers, making it an excellent choice for recovery runs. It's important to note that the Isaac model features an 8 mm drop, which is different from the 4 mm drop found in the Distance and Gravity models. Additionally, I'd like to highlight Newton's exceptional customer service, which has consistently enhanced my experience with their products.

R
Red running in to water.
Comfortable shoe

Glad I purchase running shoes, the most comfortable shoes I’ve worn. I’m 6’ tall & 215 pounds. These shoe give me energy bounce back in every step. I would highly recommend to a person that’s a little on heavy side.

123