Nike Zoom Fly Review

   We have another review today from the great Dr. Nathaniel S Kollias DVM, MPH.  Dr. Kollias was kind enough to provide a review on the new Nike Zoom Flys.  I previously did an initial review that can be found HERE but had to send them back due to financial limitations.  Dr. Kollias has put over 100 miles on his pair and now has a good sense for the ride and feel of this shoe.  Read on to find out his thoughts. Wait, wait, wait….a Nike?!  I know, I sold my soul and went to the dark side blah blah blah blah (I mean the Siths do get better lightsabers and robes).  I must admit though, Nike is on to something here.  I have tried Nike in the past and have run happily in the Kiger 3’s and the Lunar Epic 2s, but returned the Pegasus 34 after only running a few miles in them (I know blasphemy to you Nike fans out there).  Anyways I digress, you stumbled on this running shoe review page either by accident or you really wanted to see what I had to say about the Nike Zoom Flys (I’ll try to convince myself it is the second point).  O well, on to the review!
A very radically designed shoe that is sure to turn heads!
Looks:
The people at Nike have a team of geniuses when it comes to the style department.  I have yet to find a running shoe from them that looks hideous.   These new Zoom Flys do not disappoint and come in the stealthy graphite black crimson color and the 70’s leisure suite baby blue colorway.  Thus, depending on your personality or mood, you can go with the stealth bomber look or the groovy 70’s look.  Either way you cannot go wrong and will be sure to grab people’s attention.
http://img.runningwarehouse.com/watermark/rs.php?path=NIV34M-1.jpghttp://img.runningwarehouse.com/watermark/rs.php?path=NIV34M1-1.jpg
Same colorways available for men and women with the same stack heights (23mm forefoot and 33mm heel and weights at 7.1oz and 8.4oz for Men’s size 9 and Women’s size 8 respectively). Information derived from Running Warehouse.
Fit and Upper:
These fit beautifully!  The execution of the upper is spot on with a nice anatomical last.  The heel is super snug, the midfoot secure, and the toe box is accommodating with a nice rounded shape that follows along the natural curve of the toes.  There are virtually no seams and the inside is smooth and very breathable, which I can attest to as I have used them in 90+ degree Fahrenheit runs.  I also appreciate the reflective material used in the swoosh along the side, a straight forward lacing system and a compliant thin tongue.  It is impressive how secure one’s foot feels in this shoe with such a large stack height.  The only other shoes that can compete in regards to secure uppers are Salomon running shoes.  If you read my review of the Salomon S-Lab Wings 8; you’ll get an appreciation for how wonderful those shoes fit (HERE).   
I love how the toe box perfectly follows the shape of my toes!
Midsole and Ride:
This is where this shoe stands out from all the others in the current market.  A high stack height of soft foam (Lunarlon®), plus a traditional heel to toe offset, a rocker bottom, and an embedded full-length carbon infused nylon plate make this a unique shoe.   In other words, it is a racing flat spliced with a max cushioned daily trainer. You can think of the Zoom Fly as the love child of the Hoka Clifton and the Zoom Streak 6 (and maybe a Newton Distance III snuck in at some point).  When initially putting them on, you can feel yourself leaning forward. This sensation stems from the design of the midsole itself, which is set up on a rocker-like midsole.  I won’t try to explain it as Matt did a wonderful job in his initial review of this shoe (HERE).  Therefore, go read that review if you want the highly detailed Doctor of Physical Therapy description.
One can appreciate in this picture how the heel curves up to a point on both the lateral and medial aspect.  This may be an issue for people who landed farther back on their heel as it could lead to instability.  I personally have had no issue with this.
This rocker combined with the embedded plate creates a spring like sensation underfoot.  I am very happy that they went with Lunarlon® for the chassis of foam surrounding the plate and highly durable rubber on the outsole.  The softer foam compliments the stiff plate, whereas a firmer midsole material would make the shoe completely non-compliant and less forgiving.  Altogether, this allows you to experience the soft cushioning of the Lunarlon® without the bottoming out of mushiness that can occur when it is on its own.  It is reminiscent of what Newton attempts to accomplish with their shoes. By using a full-length plate Nike far surpasses Newton by not concentrating the pressure into one small area of the foot (forefoot).  The whole foot is involved the gait cycle (not just the forefoot) and the plate allows the energy conservation in tandem with the soft Lunarlon® to give a trampoline like affect underfoot.  The interesting thing for me is that I love the ride of this shoe, which goes against my general dislike for excessive toe spring and/or rockered soles.  Again, read Matt's review on rocker soles (HERE) and his initial review of the Zoom Fly to get a better understanding for why this shoe probably works for me.  
One can really appreciate the rocker-like sole and the black line between the red and white feels like where the shank sits within the midsole.
My thought is that when I run, my toes can still go through their normal range of motion due to the caudally placed rocker location.  Also, the pointed heel has no negative effect on my gait.  This goes in line with my dislike of shoes with fat heels or heels with excessive lateral or medial bias.  I tend to have a high knee drive with a high cadence and I feel that these shoes encourage this motion (these shoes are aiding me in utilizing my gluteal and hip muscles better – win for improving muscle groups).   I have worn these shoe for long runs, tempo, fartleks, and progression runs with only mild forefoot soreness on some of my harder efforts (which I attribute to the plate being so stiff).
Durability
I have 130 miles on these and there is little sign of wear.  Granted, I am very nimble on my feet and managed to get almost 1000 miles on each pair of Adidas Boston 5s and 6s I have owned.  Nike was smart in covering the high impact areas with highly durable rubber. This rubber is also very grippy on dry and wet surfaces.  I have even put miles on mild trails the the outsole and upper have not showed excessive signs of wear.  Overall a very durable shoe that should get around 400 miles for the average person.
Nice durable rubber used as the outsole on high abrasion areas (heel and forefoot).  This picture was taken after logging 100+ miles.
Overall
Nike did a wonderful job designing this shoe and the Zoom Fly is one that you should try out.  Granted it won’t work for everybody, but it is a solid shoe that works well as a light weight daily trainer for many and even half to full marathon racer for others.  This shoe does come in at a hefty price point of $150. However, most footwear companies are trending this way even with their traditional trainers.  I feel that the ride, durability, comfort, performance, and looks are represented in this price. Again, I highly suggest you at least consider the Nike Zoom Fly and at least try a pair.
Hopefully you enjoyed this review and please leave comments and questions below!  As Matt always says, “Tack On!”

These opinions are my own, these were a personal purchase and I received no monetary compensation for this review. -Dr. Kolias, DVM, MPH

Editor's Note: As always, the views presented on this blog belong to myself or the selected few who contribute to these posts. My blog should not and does not serve as a replacement for seeking medical care. If you are currently injured or concerned about an injury, please see your local running physical therapist. If you are in the Los Angeles area, I am currently taking clients for running evaluations.

Currently Dr. Kollias has 130 miles on his pair of Nike Zoom Flys. We put at least 50-75 miles on trainers and 25 miles on racing flats prior to reviewing them. If you are a footwear rep looking for footwear reviews or consultations on development, we are currently looking to partner with companies to assist, discuss and promote footwear models. Partnership will not affect the honesty of hour reviews. Thanks for reading!

Dr. Matthew Klein, PT, DPT and Dr. Nathaniel Kollias, DVM, MPH