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Men's Isaac S

$150.00

Built for Maximum Support

The Isaac S is perfect for all foot types and everything from walking to moderately paced workouts. Like all Newtons it offers highly responsive cushioning to maximize ground feel and ease of transition through each stride.

Sustainably Constructed, Certified Vegan


New to Newton? We fit snug for most. Add a 1/2 size for best fit. (US Sizing Displayed)


Sir Isaac S Details

Newton Lady Isaac Specifications

specifications

  • Weight (oz): 9.1
  • Drop: 3
  • Support: Stability
Newton Lady Isaac Upper

upper

  • Light and Airy
  • Durable, Comfortable and Breathable
  • Performance Lace and Tongue System
  • Metatarsal Stretch Panel
  • Foot-hugging supportive overlays
Newton Lady Isaac Sole Technology

sole technology

  • Responsive and Agile
  • Full-Foot Newtonium Cushioning
  • Tactical Flex Grooves to Mirror Foot Motion
  • Tuned Posting to Enhance Stability
Learn More About Newton's Technology

What Makes Newton Unique?

Level Platform

Over time, many shoe designs have become thicker, softer and heavier with greater heel heights. In the spirit of making every stride better, Newton shoes feature lower heel to toe drops to put you in a more natural running position.

 

Action/Reaction Technology

The secret formula powering the speed of Newton Running shoes is its proprietary Action/Reaction Technology. Generated by the active movement of the lugs, it creates a responsive, trampoline-like cushioning system that provides quicker bounce-back and loses less energy than a traditional foam-core running shoe.

Full Foot Cushioning

If you love the responsive yet cushioned feel of the lugs in the forefoot, you'll be happy to find out the same technology exists in the heel. With Newton Running, you get full-foot cushioning and protection.

What Our Runners Think

Customer Reviews

Based on 25 reviews
100%
(25)
0%
(0)
0%
(0)
0%
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B
BJ Cummings
Keeps me going!

Best shoes after many miles of wear! Keeps my toes from pushing forward and balances my feet and stride. Thanks!

P
Phil Weiss

Love them

j
juan gelista
Best running shoes I have ever purchased.

I can’t help being frugal, especially in today’s economy, but currently need to be able to complete 1.5 miles and a 300 meter dash running on a concrete surface. I suffer from heel pain, and these shoes, along with some athletic taping and heel cushions have helped me to complete all of the required times. The shoes are well worth the price and I purchased a second pair within days so that I could rotate them for daily runs.

G
GARY ARNOLD
Issac S to the rescue

I have been having foot and knee pain due to lack of mobility in big toe resulting in over-pronation causing pain in posterior tibia and knee. Using the Issac S it has kept me in-line and allowed my foot to move forward and run without pain. It is an excellent shoe that provides stability, helps the glutes fire, and allows me to run mostly pain free.

C
Carl Sivertsen
Great shoe

This may be my 5th pair Guess you can see I like them. I’m a supinator and this my go to shoe. I like the support and most of all I like not hurting after doing my workout.

123

Customer Reviews

Based on 25 reviews
100%
(25)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
B
BJ Cummings
Keeps me going!

Best shoes after many miles of wear! Keeps my toes from pushing forward and balances my feet and stride. Thanks!

P
Phil Weiss

Love them

j
juan gelista
Best running shoes I have ever purchased.

I can’t help being frugal, especially in today’s economy, but currently need to be able to complete 1.5 miles and a 300 meter dash running on a concrete surface. I suffer from heel pain, and these shoes, along with some athletic taping and heel cushions have helped me to complete all of the required times. The shoes are well worth the price and I purchased a second pair within days so that I could rotate them for daily runs.

G
GARY ARNOLD
Issac S to the rescue

I have been having foot and knee pain due to lack of mobility in big toe resulting in over-pronation causing pain in posterior tibia and knee. Using the Issac S it has kept me in-line and allowed my foot to move forward and run without pain. It is an excellent shoe that provides stability, helps the glutes fire, and allows me to run mostly pain free.

C
Carl Sivertsen
Great shoe

This may be my 5th pair Guess you can see I like them. I’m a supinator and this my go to shoe. I like the support and most of all I like not hurting after doing my workout.

123