Buy Now

Lady Isaac S New!

Offering intelligent control, the Lady Isaac stability guidance trainer is designed for runners of all levels, including beginners, who are committed to natural form running and need medial posting for mild pronation. Whether you follow Chi, Pose, Evolution, barefoot running or just want to run better, the Lady Isaac S allows you to run naturally, with greater efficiency and less overuse injuries (like Achilles tendonitis and plantar fasciitis). Recommended for any distance and general fitness, walking or working out in the gym.

UPPER

  • Highly breathable, closed mesh
  • Slip-proof laces with heel-securing double eyelets
  • Lightweight ergonomic support strapping
  • Metatarsal stretch panels for foot adjustment
  • Reflective logo and heel tab

MIDSOLE

  • Single-density, high rebound EVA
  • Second generation Action/Reaction™ technology midfoot and heel
  • Midfoot support chassis for added stability
  • Beveled heel and toe
  • Met-flex enhanced midfoot flexibility
  • Enhanced sock-liner that increases energy return and protection
  • Accommodates orthotics

OUTSOLE

  • Durable high-traction actuator lugs
  • Increased toe spring
  • Pronounced heel rocker
  • High-wear carbon rubber with traction tread

GREEN FEATURES

  • 100% recycled laces, webbing, insole top cover
  • 100% recycled PET upper mesh
  • 100% recycled box, packaging
  • 10% recycled outersole rubber
 USD
8.9 ounces (size 7)
6-12 (B width)
Shipping Canada late May.
							
						
							
					
							
					
									
							
						
YOUR CART HAS ITEM(S)

Email Updates

Find a Store

Locate a retail store near you.

Find a Coach

Locate a Newton Natural Running™ Certified Coach near you.

What's the Buzz?

  • Just a few lines to let you know that I had a wonderful race in San Sebastian marathon (Spain) two weeks ago. I ran in 2:30 in my Newton shoes. I'm from the Basque country in Spain and everybody is asking me what shoes are these. I'm the first guy running in these shoes around here. I've done all my previous long runs wearing them and cushioning is just exceptional. I had No blisters or signs of a marathon after the race. Obviously I'm ready for a new pair for my next event. Congratulations you've got a great weapon for runners.
    — Jon

Runners World
Natural Running Book
Order 2012 Newton Running Shoes
Running Front Blog