![marinaviolet](http://www.newtonrunning.com/cdn/shop/files/WBlueWhiteVioletLateral-9990_1024x.png?v=1708116713)
Women's Isaac Details
![Women's Isaac](https://cdn.shopify.com/s/files/1/0071/6698/4310/files/specifications.jpg?13552131280740709462)
specifications
- * Weight: 7.8oz
- * Drop: 8.0mm
- * Support: Neutral
- * Certified Vegan
- * Sustainably Constructed
![Women's Isaac](https://cdn.shopify.com/s/files/1/0071/6698/4310/files/upper.jpg?13552131280740709462)
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](https://cdn.shopify.com/s/files/1/0071/6698/4310/files/midsole.jpg?13552131280740709462)
sole technology
- * Energized NRG+™ Foam
- * XPS+ Pebax® plating system
- * Split-lug Action Reaction Technology™
- * Hytrel® foam footbed
What Makes Newton Unique?
![Women's Isaac Side View](https://cdn.shopify.com/s/files/1/0071/6698/4310/files/W_Lat_CC.png?v=1691507058)
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](https://cdn.shopify.com/s/files/1/0071/6698/4310/files/W_Btm_CC.png?v=1691507058)
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](https://cdn.shopify.com/s/files/1/0071/6698/4310/files/WIangleCC_V33.png?v=1692301381)
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](https://cdn.shopify.com/s/files/1/0071/6698/4310/files/WIsaac_SQ500.png?v=1692227981)
![Women's Isaac](https://cdn.shopify.com/s/files/1/0071/6698/4310/files/WIsaac_V3_SQ500.png?v=1692227981)
What Our Runners Think
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.
Decided to try new shoes for long distance runs. The Isaac’s are amazing. Perfect balance of support and lightweight feel. Don’t run in anything else now!
Super comfortable! Perfect fit 😁
I ran in the Isaacs for my last 1/2 marathon and had a PR. Love the cushion and snug heel cup.
The comfort level of Isaac is unparalleled. The cushioning is exactly what I've been longing for. These are perfect for training.
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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.
Decided to try new shoes for long distance runs. The Isaac’s are amazing. Perfect balance of support and lightweight feel. Don’t run in anything else now!
Super comfortable! Perfect fit 😁
I ran in the Isaacs for my last 1/2 marathon and had a PR. Love the cushion and snug heel cup.
The comfort level of Isaac is unparalleled. The cushioning is exactly what I've been longing for. These are perfect for training.