Newton Sir Isaac Guidance Trainers
August 19, 2009
Since its launch two years ago, Newton Running’s shoe philosophy has been seen as revolutionary and at times highly controversial. As Gear Junkie readers know, I am a fan of Newton’s odd outsole, which includes minimal heel-to-toe drop to discourage a rolling stride and lugs underfoot to keep a runner forward and fast.
For runners intimidated by the company’s original shoe offerings, which skew aggressive and unforgiving on form, Newton (www.newtonrunning.com) has unveiled a new model for this fall. The men’s Sir Isaac Guidance Trainers and women’s Lady Isaac Guidance Trainers have most of the same attributes as the original Newtons, including the midfoot sole lugs, called “actuator lugs.” But with a wider heel and forefoot, increased toe spring, a midsole support shank, and a beveled heel, the shoes are more forgiving to people not used to the “Newton stride.”
The company says the Sir Isaac and Lady Isaac will help a runner “make the transition to a more efficient midfoot/forefoot running technique” and “embrace their natural running form.” This form would be a midfoot strike with shorter steps and a faster stride cadence — a style that is sometimes referred to as a barefoot running technique.
Both Isaac models — due out in September — have a breathable closed mesh upper. The sole has been beefed up for durability, including a hard plastic protective covering on the midfoot. The rubber feels much more durable than other Newton models I’ve tested, which have soft rubber that shows wear after only a couple runs.
The actuator lugs on the Sir Isaac and Lady Isaac have been updated. They have a slight tread pattern for traction on wet surfaces, and they are made of a harder-wearing carbon rubber for added durability.
Like past models, the Isaacs remain at the upper echelon of the running shoe pricing structure. They will cost $149.
The company quotes the Sir Isaac as weighing 10.9 ounces (men’s size 9) and the Lady Isaac at 8.9 ounces (women’s size 7). On my scale, they were 13.4 ounces per shoe (in a size men’s 12.5), which is lightweight for this kind of running shoe, though about an ounce heavier than the Newton Neutral Racer model I employ for training and events as long as marathons.
I took two five-mile test runs in the Sir Isaacs this week. My initial reaction was good. They are comfortable and indeed more forgiving than other Newtons I have tried. There is less negative feedback underfoot if you strike with the heel, letting a runner ease into a midfoot-strike technique while learning to run the Newton Way.
—Stephen Regenold writes about outdoors gear at www.gearjunkie.com.
I’ve just received my first pair of Isaac Newton trainers and very impressed. Having trained and raced in the Gravity trainers for the season I am now planning slower longer base mile runs over the winter. These Isaac “Guidance trainers” work very well both for Newton newbies as well as for slower training runs where the original Gravity trainers are a bit too unforgiving (especially semi off-road conditions). The more supportive heel plus redesigned “actuator lugs” give a more forgiving feel but still have the Newton feel. Overall very impressed and a great addition to the Newton range.
I really do not understand how a shoe can be suitable for any kind of gait. How anybody with low arch/flat feet use it? How does it feel? I’m trying to decide between this new version or the trainer stability (http://www.newtonrunning.com/newton-products/the-shoes/mens-shoes/men-trainers/men-stability-trainer-09)
Thanks,
I’m into my second pair of Newtons. The first were great and I wore them out pretty quickly. The second pair, which were exactly the same model and size as the first, didn’t quite do it for me for some reason. Might have come from a bad lot at the factory.. who knows? I’m very interested in the Sir Isaac and will probably head over to Roadrunner Sports next week to take a test run. So far, I’m impressed with Newton shoes. P.S., I’m also a pronator by the way but have never had any problems with the Newton brand or the running style.
How do the Newtons compare to Asics in terms of comfort and cushioning, anybody know? I am a die-hard Asics guy, and I am so tempted to try the Newtons but wondering if the actuator lugs really do anything and if the shoes are as soft and nice on the feet as Asics gel. Thanks for any and all feedback.
Well, I bought the Lady Isaacs newtons n ($149) with actuator lugs about two weeks ago (I am a fore foot runner, varsity compettive runner in collere and have been running for last 25 years since) and do lots of hills, usually p[avement 5-8 mile runs 4-5 times a week at a 7-8 min mile pace. Well, after ONE run in these new shoes (which felt great for me!)the sole lug was worn completley down flat/bare on the left foot! I reported this to roadrunner where I purchased them and to newton. I love them so I was extremely shocked and disappointed in this unexceptable wear on sole, unlike I have hever experienced in a vaireyt of running shoes. ODD? Not sure what to replace them with? betsy
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What kind of pronation do they support?