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Women's Isaac S

$150.00
4.8 8

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Sizing Note: Due to the structured nature of this shoe some find that it fits a little snug so please consider starting a half size larger than you might typically wear

The Lady Isaac S is back by popular demand! As our most structured and supportive shoe it's ideal for walking, running, or anything in between. The Isaac S is for runners who want stability in a responsive, maximally cushioned ride.

Product Details

  • Item number • W011418
  • Weight • 9.2
  • Platform • 4 lug
  • Heel-to-toe drop • 4.5mm
  • EMB • No

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

No animal products were used in the making of this shoe

Outersole

Durable high-traction lugs

Increased toe spring

Pronounced heel rocker

High-wear carbon rubber with traction tread

Midsole

High-rebound EVA

Action/ReactionTM technology in the midfoot and heel

Midfoot support chassis for added stability

Medial posting to offset pronation

Beveled heel and toe

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8 Customer Reviews

5.0
Thanks so much for bringing the shoe back
It is my favorite shoe of all time. I have had a bad back and a surgery and running in these shoes gives me the stability that I can run and not increase my back pain. Thanks so much
November 8, 2018
5.0
Great shoe, but order up a size
I walk 4-5 miles/day and was introduced to the Lady Isaac years ago when I was dealing with a neuroma. I've been enjoying the Kismet but was so glad when they brought back the Isaac. I wear a size 8 but order up to an 8 1/2 or 9 in walking shoes. I ordered the 9 in the Isaac and wish I had gone up to a 9 1/2! I alternate between the Isaac and the Brooks Ghost but unfortunately have to wear the Isaac on my short walks because they're just too small. I really wish I had called after the first day to see if I could exchange for the 9 1/2. Newton customer service has always been fantastic and they probably would have honored the exchange. It really is my favorite walking shoe, and I'll be sure to order the 9 1/2 next time.
November 2, 2018
3.0
Needed the Neutral
I have worn the Gravity and Boco shoes and loved them. Decided to give the Issac a try for some additional heel cushion. The stability design was too much for me and was uncomfortable on the side of my heel. I returned and traded for the Fate 4 which I am very happy with.
October 31, 2018
5.0
I love this shoe
Thank you for bringing this model back. The stability is outstanding. I injured my bicep femoris after my last marathon due to my gait and this shoe keeps me in alignment.
October 5, 2018
5.0
Favorite Running Shoe
I run 4-5 x a week and do alternate my sneakers. However, Lady Isaac's are my favorite ! Customer Service is superior too. Now, if we can just work on getting some additional colors - like pink !!
August 28, 2018
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