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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 36 reviews
94%
(34)
3%
(1)
3%
(1)
0%
(0)
0%
(0)
88.6
D
Debby B.
The Ideal Isaac

This women’s Isaac is ideal: the right combination of cushioning, recoil and support, but still light and not stiff. It does run small, but I have finally found the correct size.

E
EDB
Excellent shoe

Love the Newton shoes, comfortable on first wear

K
KF
LOVE these new Newton Isaacs!

Lady Isaac was my first introduction to Newton Running Shoes way back when ... and I have not looked back since! So happy with the new Isaac design! Super comfortable out of the box. I have already ordered a second pair as my back up :)

Y
Yvonne

I love the extra cushioning and the fit. I was worried that with the extra padding they might look or feel bulky compared to other models, but they are not! I like the look and feel.

M
Monica Aguilar
Like running on clouds

I switched from Kismets to Isaac's because over time things change. The Isaac's are AMAZING! I feel like I'm running on clouds. They make me feel light on my feet and are really comfortable.

123

Customer Reviews

Based on 36 reviews
94%
(34)
3%
(1)
3%
(1)
0%
(0)
0%
(0)
88.6
D
Debby B.
The Ideal Isaac

This women’s Isaac is ideal: the right combination of cushioning, recoil and support, but still light and not stiff. It does run small, but I have finally found the correct size.

E
EDB
Excellent shoe

Love the Newton shoes, comfortable on first wear

K
KF
LOVE these new Newton Isaacs!

Lady Isaac was my first introduction to Newton Running Shoes way back when ... and I have not looked back since! So happy with the new Isaac design! Super comfortable out of the box. I have already ordered a second pair as my back up :)

Y
Yvonne

I love the extra cushioning and the fit. I was worried that with the extra padding they might look or feel bulky compared to other models, but they are not! I like the look and feel.

M
Monica Aguilar
Like running on clouds

I switched from Kismets to Isaac's because over time things change. The Isaac's are AMAZING! I feel like I'm running on clouds. They make me feel light on my feet and are really comfortable.

123