Newton Running Isaac S

  • 5 stars
    67%
  • 4 stars
    25%
  • 3 stars
    8%
  • 2 stars
    0%
  • 1 star
    0%
Newton Running Isaac S
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Description

  • Unleash your natural stride and build efficiency with each step by slipping into the Isaac S.

    Adaptation Period:
  • Adjusting to Newton running shoes will depend upon several factors including: your current running shoes, your running form, gait efficiency, as well as your speed and flexibility. Those new to natural running form or those transitioning from a shoe with traditional cushioning will benefit from spending adequate time adjusting. Your body will need time to lengthen the muscles and tendons on the back of the leg and under the foot.
  • Newton recommends first-timers walk in their shoes for several days to become accustomed to the level platform. Walking barefoot on safe and comfortable surfaces can also be helpful. Once ready, begin by introducing short runs of no longer than 15 minutes every other day. Gradually add 10-15 minutes as your feet and leg muscles begin to strengthen. If soreness persists for more than two days, reduce time in shoes immediately. Rest and ice until soreness subsides, then slowly begin introducing time in shoes again.
  • A stability guidance runner designed for everyday training and slow-paced running. It is the most traditional, structured and supportive shoe in the Newton line, and is designed to help runners new to the natural running experience.
  • Breathable closed mesh upper.
  • Lightweight synthetic overlays.
  • Metatarsal stretch panels.
  • Fabric lining supplies a soft step-in feel.
  • Accommodates most orthotics.
  • Second-Generation Action/Reaction Technology: A highly responsive, trampoline-like and engaging midsole cushioning that protects and loses less energy with each step.
  • Single-density, high-rebound EVA midsole.
  • Mid-foot support chassis provides enhanced stability.
  • Heel/ Forefoot Differential: 5mm.
  • Beveled heel and toe.
  • Met-flex for enhanced forefoot flexibility.
  • Durable carbon rubber outsole supplies reliable traction.
  • Increased toe spring.
  • Pronounced heel rocker.
  • Measurements:
    • Weight: 9 oz
  • Product measurements were taken using size 7, width B - Medium. Please note that measurements may vary by size.

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Fit Survey:

67% Felt true to size
  • 0% Full size too large
  • 0% Half size too Large
  • 67% True to size
  • 25% Half size too small
  • 8% Full size too small
92% Felt true to width
  • 92% Felt true to width
  • 8% Felt narrower than marked
  • 0% Felt wider than marked
55% Moderate arch support
  • 45% Excellent arch support
  • 55% Moderate arch support
  • 0% No arch support

Item Information

  • Unleash your natural stride and build efficiency with each step by slipping into the Isaac S.

    Adaptation Period:
  • Adjusting to Newton running shoes will depend upon several factors including: your current running shoes, your running form, gait efficiency, as well as your speed and flexibility. Those new to natural running form or those transitioning from a shoe with traditional cushioning will benefit from spending adequate time adjusting. Your body will need time to lengthen the muscles and tendons on the back of the leg and under the foot.
  • Newton recommends first-timers walk in their shoes for several days to become accustomed to the level platform. Walking barefoot on safe and comfortable surfaces can also be helpful. Once ready, begin by introducing short runs of no longer than 15 minutes every other day. Gradually add 10-15 minutes as your feet and leg muscles begin to strengthen. If soreness persists for more than two days, reduce time in shoes immediately. Rest and ice until soreness subsides, then slowly begin introducing time in shoes again.
  • A stability guidance runner designed for everyday training and slow-paced running. It is the most traditional, structured and supportive shoe in the Newton line, and is designed to help runners new to the natural running experience.
  • Breathable closed mesh upper.
  • Lightweight synthetic overlays.
  • Metatarsal stretch panels.
  • Fabric lining supplies a soft step-in feel.
  • Accommodates most orthotics.
  • Second-Generation Action/Reaction Technology: A highly responsive, trampoline-like and engaging midsole cushioning that protects and loses less energy with each step.
  • Single-density, high-rebound EVA midsole.
  • Mid-foot support chassis provides enhanced stability.
  • Heel/ Forefoot Differential: 5mm.
  • Beveled heel and toe.
  • Met-flex for enhanced forefoot flexibility.
  • Durable carbon rubber outsole supplies reliable traction.
  • Increased toe spring.
  • Pronounced heel rocker.
  • Measurements:
    • Weight: 9 oz
  • Product measurements were taken using size 7, width B - Medium. Please note that measurements may vary by size.
View Zappos.com Glossary of Terms

Find something wrong in this description? Help us fix it! Report An Error

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Customer Reviews

Newton Running Isaac S

Isaac S
Write a Review
1 person found this review helpful
Overall: Rated: 5 stars! Comfort: Rated:5 stars! Style: Rated:5 stars!
Was this review helpful?

I love everything about this shoe. It is comfortable, fits like it was made for me, and fun to wear. I find the support to be phenomenal, though I'm not a runner. I ordered an 8.5, which is the size I always wear in athletic shoes. The fit is perfect. As far as color goes, it's more of an electric pink than a true red, but I love these shoes.

Fit Survey

Runs Small

Runs Large

Felt true to size

Runs Narrow

Runs Wide

Felt true to width

Poor Support

Great Support

Excellent arch support

  • - customer
  • from Louisiana
1 person found this review helpful
Overall: Rated: 4 stars! Comfort: Rated:3 stars! Style: Rated:4 stars!
Was this review helpful?

I like the idea of these. I've never been a fast or long distance runner, but I've started getting knee and ankle pain. I am definitely a runner with a heel strike, so I am curious to try these out, and I still am curious to try them. I had to send these back because they are too small. I will try a half size up but wonder if I should get a whole size up. I even used the sizing function on the Newton website in which you type in your current shoe type and size and they tell you what size to get. Not so helpful. Shoe was way too small. My big toe rubbing the end of the shoe. Good thing Zappos returns are so easy!

Fit Survey

Runs Small

Runs Large

Felt a half size smaller than marked

Runs Narrow

Runs Wide

Felt narrower than marked

Poor Support

Great Support

Moderate arch support

  • - customer
  • from Seattle, WA
Overall: Rated: 5 stars! Comfort: Rated:5 stars! Style: Rated:5 stars!
Was this review helpful?

I love my Newtons. This is the 3rd pair I've owned and love the fit and the fact that it has cut down on running aches and pains! Love Zappos and the shoes came in 2 days w/free shipping!

I'd also recommend: Stick with Newtons!

Fit Survey

Runs Small

Runs Large

Felt true to size

Runs Narrow

Runs Wide

Felt true to width

Poor Support

Great Support

Moderate arch support

  • - customer
  • from Mobile, AL
Overall: Rated: 5 stars! Comfort: Rated:5 stars! Style: Rated:5 stars!
Was this review helpful?

This sneaker is literally life changing! I suffer from plantar fasciitis and yet I love to run, this sneaker makes it possible. It took almost no time to get used to, and I feel lighter and faster than ever. Love!

Fit Survey

Runs Small

Runs Large

Felt true to size

Runs Narrow

Runs Wide

Felt true to width

Poor Support

Great Support

Moderate arch support

  • - customer
  • from new York
Overall: Rated: 5 stars! Comfort: Rated:5 stars! Style: Rated:5 stars!
Was this review helpful?

These are great shoes. I have bought three pairs and another for my daughter. After years of sore feet I finally have the shoes that make my feet feel good.

Fit Survey

Runs Small

Runs Large

Felt true to size

Runs Narrow

Runs Wide

Felt true to width

Poor Support

Great Support

Excellent arch support

  • - customer
  • from Sitka, AK
$150.00

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Width: B - Medium

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