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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 40 reviews
95%
(38)
3%
(1)
3%
(1)
0%
(0)
0%
(0)
89.2
M
Marybeth
GREAT

Newton never disappoints me. I always wore when running and now that I am older and unable to run as in the past, I use this for work at my part time job which requires walking on concrete floors and they are a blessing.

a
aub_sum
Love my Newtons

These are my second pair of Newton’s in the last year and I love them! I have the Gravity 12 that I use for trail running. I bought the Isaac’s for road races. I have only ran in them once on the treadmill, no issues. And used them for a 10 mile hike. No complaints or pains. Highly recommend! They’re fabulous.

R
Roberta Gifford
Lady Isaac S sneakers

When are Lady Isaac S coming back

C
Customer
Comfortable

The Newton Women’s Isaac is very comfortable and has the perfect toe box for my feet. I use a lift in the left shoe so U ordered a half size bigger and they are perfect!!!

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.

123

Customer Reviews

Based on 40 reviews
95%
(38)
3%
(1)
3%
(1)
0%
(0)
0%
(0)
89.2
M
Marybeth
GREAT

Newton never disappoints me. I always wore when running and now that I am older and unable to run as in the past, I use this for work at my part time job which requires walking on concrete floors and they are a blessing.

a
aub_sum
Love my Newtons

These are my second pair of Newton’s in the last year and I love them! I have the Gravity 12 that I use for trail running. I bought the Isaac’s for road races. I have only ran in them once on the treadmill, no issues. And used them for a 10 mile hike. No complaints or pains. Highly recommend! They’re fabulous.

R
Roberta Gifford
Lady Isaac S sneakers

When are Lady Isaac S coming back

C
Customer
Comfortable

The Newton Women’s Isaac is very comfortable and has the perfect toe box for my feet. I use a lift in the left shoe so U ordered a half size bigger and they are perfect!!!

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.

123