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Women's Isaac

$94.00  $145.00

Meet The New Lady 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)


Women's Isaac Details

Women's Isaac

specifications

  • * Weight: 7.8oz
  • * Drop: 8.0mm
  • * Support: Neutral
  • * Certified Vegan
  • * Sustainably Constructed
Women'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
Women'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?


Women'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.

Women'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.

Women'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.

Women's Isaac
Women's Isaac

What Our Runners Think

Customer Reviews

Based on 58 reviews
93%
(54)
2%
(1)
3%
(2)
0%
(0)
2%
(1)
91.2
C
Corrie Z.
Floating when jogging on treadmill

Floating when jogging on treadmill

S
Sandra G.
Newton Ladies 2

I love the way I feel running in them. They make my feet feel like I am more stable in my stride. Thanks for a better shoe.

L
Linda S.
Replaced the distance

Ran in the distance elite religiously for 4 years but I had my second child and my feet changed shape during the third trimester and never really came back. Ended up with shin injuries training for my first half after the baby. Went to a running store and he watched my gate and explain I was overpronating and needed cushion and a higher heel drop than 2mm. Grabbed these and I’ve got 300 miles on them so far and I’m not looking back! Comfortable and fixed my injury issue, doing Hal Higdon’s Advanced 1 marathon plan and have not had any problem even putting up 40 miles/week with speed work

T
Terry W.
Great walking shoes!

Excellent cushioning and extremely comfortable!!

S
Stephanie F.
Love the Issacs

I have run exclusively in Gravity for over a decade, but wanted to try the extra cushion of the Issac. I was a bit nervous since I haven’t worn any other shoe besides the Gravity for so long, but was so pleased by the straight from the box comfort. Excellent shoe - my new favorite. They have the great Newton fit with a little more cushiness.

123

Customer Reviews

Based on 58 reviews
93%
(54)
2%
(1)
3%
(2)
0%
(0)
2%
(1)
91.2
C
Corrie Z.
Floating when jogging on treadmill

Floating when jogging on treadmill

S
Sandra G.
Newton Ladies 2

I love the way I feel running in them. They make my feet feel like I am more stable in my stride. Thanks for a better shoe.

L
Linda S.
Replaced the distance

Ran in the distance elite religiously for 4 years but I had my second child and my feet changed shape during the third trimester and never really came back. Ended up with shin injuries training for my first half after the baby. Went to a running store and he watched my gate and explain I was overpronating and needed cushion and a higher heel drop than 2mm. Grabbed these and I’ve got 300 miles on them so far and I’m not looking back! Comfortable and fixed my injury issue, doing Hal Higdon’s Advanced 1 marathon plan and have not had any problem even putting up 40 miles/week with speed work

T
Terry W.
Great walking shoes!

Excellent cushioning and extremely comfortable!!

S
Stephanie F.
Love the Issacs

I have run exclusively in Gravity for over a decade, but wanted to try the extra cushion of the Issac. I was a bit nervous since I haven’t worn any other shoe besides the Gravity for so long, but was so pleased by the straight from the box comfort. Excellent shoe - my new favorite. They have the great Newton fit with a little more cushiness.

123