New Balance FuelCore Sonic

8.2
8.2 score
[Editors rating (8.2)] = Runnerclick score (8.2)/10

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New Balance FuelCore Sonic Review Facts
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New Balance has been experiencing a brand crisis over the past decade or so. For the longest time, this footwear manufacturer was known for their lines of comfortable walking and running shoes that provide many layers of padding and extra size options for individuals with wide feet. Although this design philosophy has generated a niche appeal, New Balance has waned in popularity because their designs were usually very heavy and had a tacky sense of style. As athleisure became more popular and companies like Adidas and Nike conquered the footwear market, New Balance has been desperately trying to rebrand themselves as a modern and fashionable footwear manufacturer. The New Balance FuelCore Sonic is one of their current offerings that exemplify this stylistic shift, with many interesting features that indicate a bold new direction for this legacy brand.

Editor's Pros & Cons
Pros
  • Surprisingly lightweight
  • Excellent upper stability
  • A unique sense of style
  • Great responsiveness
Cons
  • Limited traction on wet surfaces
  • Less comfortable than older models
Outsole
Outsole

Outsole

In a move that is standard for most mid-range running shoes, New Balance coated its underside in a very hard and abrasion-resistant rubber compound. Thanks to its firmness, runners can strike the ground with their full power and not suffer consequences to their feet, legs, or joints due to the material’s shock absorbing properties. This material is also divided into several small plates with elevated lugs, separated by long horizontal grooves. This comes with two benefits: the first is improved traction since the lugs grip to the ground like teeth, and the second is flexibility from the large grooves. The one downside to this shoe’s outsole design is that it doesn’t provide the same level of traction or control when running on wet or slippery surfaces.
Midsole
Midsole

Midsole

Something that you are going to find in just about every running shoe that has a midsole is EVA foam. This has become ubiquitous in regards to footwear design, but the type of EVA foam implemented in each model can vary wildly. In the case of New Balance, many of their shoes have started using REVlite EVA foam for their midsole design. This material is perfect for New Balance since it allows them to still provide the ample cushion which customers love from their products while also enabling them to greatly reduce the weight of each shoe. The FuelCore Sonic also features a slight increase in elevation from the heel to the toes in its midsole, which means that runners who like to strike the ground with their heels can experience more comfort while still allowing their forefoot to maintain a solid grip on the ground beneath their feet.
Upper
Upper

Upper

The upper portion of any running shoe is going to provide the first impression for every customer, and will often be the sole deciding factor in a purchasing decision. This may not be fair for some footwear manufacturers, but it’s an unfortunate fact of life. This principle explains why New Balance designed the FuelCore Sonic with such a radically different upper to most of their other products. In particular, the laces are unlike most running shoes or sneakers on the market since they implement a Boa system, placing the laces on the side with a small wheel for fine-tuning the fit. Coupled with the tight bootie design, this results in a highly stable and comfortable fit that feels almost as if the runner simply had a second layer of skin over their foot. Aside from the lacing system, these shoes are coated with an ultra-breathable air mesh that weighs little and provides excellent ventilation, albeit at the cost of durability and foot protection.
Weight
Weight

Weight

Another reason that New Balance wasn’t as popular among the general population is that their shoes tended to be heavier than the average running shoe. This was a natural consequence to their practice of adding a great deal of cushioning to their products and most of their dedicated customers accepted this tradeoff. However, the New Balance FuelCore Sonic weighs considerably less and is now on the low end of the running shoe weight spectrum, with the average men’s size weighing around 8 ½ ounces and the average women’s weighing around 7 ½ ounces. This was possible through the manufacturer’s use of REVlite midsole cushioning and air mesh upper material, which still manage to provide a degree of comfort without nearly as much of the weight.
Breathability
Breathability

Breathability

There are two major design elements that ensure a high level of breathability for the New Balance FuelCore Sonic. The first is the use of air mesh for the majority of its upper half: a synthetic mesh textile that has many small holes for the purpose of facilitating airflow into and out of the interior of the shoe. The second feature that benefits the FuelCore Sonic’s ventilation is its lightweight construction, with the REVlite midsole contributing greatly in this regard. Since the entire shoe is significantly lighter, less energy is expended by the runner when taking each step, which means that less heat and sweat are generated that needs to be ventilated in the first place. As a result, these New Balance running shoes are an excellent choice for runners looking for footwear to use in warmer climates.
Comfort
Comfort

Comfort

For a long time, the single most appealing aspect of New Balance’s shoes was their comfort. This company enjoyed status as a niche designer due to their ability to provide customers with a level of padding and cushion perfect for sensitive feet. Additionally, their alternate width sizing meant that individuals with feet that didn’t adopt the traditional foot shape would feel comfortable in their shoes as well. With the FuelCore Sonic, some comfort is still provided thanks to the combination of an air mesh upper and a REVlite midsole. However, the alternate width sizing is gone and the entire experience pales in comparison to the pillow-like feeling of padding that New Balance once provided. Unfortunately, this means that fans of older New Balance shoes will likely want to pass on this product.
Style
Style

Style

Something that New Balance has never been known for is their sense of style. While they may have attracted a dedicated following of customers due to their comfort and width accommodations, they’ve also been known as some of the worst-looking footwear on the market. This is the one aspect that the brand has attempted to revitalize above all others and the FuelCore Sonic is much closer in design to a modern athleisure aesthetic than their legacy products. While most of their modern offerings provide similar stylistic elements to popular brands such as Nike and Adidas, this brand brings something new to the table with its Boa lacing system. This is something that isn’t commonly found on casual running shoes which endows the FuelCore Sonic with a style that is entirely original.
Durability
Durability

Durability

Although they may not have looked very pretty, New Balance shoes were able to take quite a bit of punishment in the past. With the New Balance FuelCore Sonic, some durability can still be guaranteed thanks to their use of hard rubber for the outsole; however, many of the design elements that used to guarantee this brand’s longevity are absent in this model. The upper portion is no longer made up of several layers of comfortable padding, with a highly perforated and considerably more delicate air mesh material taking its place. The midsole is also a bit more fragile due to the fact that it is made of REVlite lightweight padding as opposed to a more resilient form of EVA foam. While it’s more or less on par with the average casual running shoe, customers should keep in mind that these shoes will likely need replacing after only one or two seasons of hard running.
Protection
Protection

Protection

While they weren’t very pretty, New Balance shoes in the past had a tank-like quality to their construction that made it very difficult for any kind of repetitive stress or impact to cause damage to the wearer’s feet or legs. With the FuelCore Sonic, however, much of this protectiveness is gone in lieu of a more lightweight and aesthetically pleasing design. It’s a tradeoff that isn’t entirely unwelcome since casual running sessions aren’t usually fraught with the kind of environmental hazards that would necessitate that level of protection. If New Balance had made trail running shoes, the absence of defensive capabilities would be much more noticeable. However, it’s still worth keeping in mind that these shoes won’t provide as much protection for the wearer’s feet as would older models.
Responsiveness
Responsiveness

Responsiveness

There are a few design elements for a typical running shoe that factor into its responsiveness and the New Balance FuelCore Sonic excel at providing them to an impressive degree. For starters, the REVlite midsole cushioning ensures that all energy from a runner’s foot strikes is absorbed and then explosively discharged in a spring-like fashion. Additionally, the way in which this shoe’s upper portion is constructed ensures that they react instantaneously to the wearer’s movements due to its bootie-style construction. Finally, the lightweight design of the entire product ensures that less energy is needed to drive each step and less resistance is encountered with smaller movements, resulting in one of New Balance’s most responsive pairs of running shoes to date.
Support
Support

Support

The most support the New Balance FuelCore Sonic can provide for the wearer’s feet is underneath them. Thanks to the REVlite midsole and hard rubber outsole, wearers will be heavily insulated from repetitive stress injuries such as shin splints. However, one aspect of underfoot support that is conspicuously absent from these shoes involves the arches. New Balance used to be a favorite for individuals with flat feet since they were able to meet their support needs. However, these New Balance running shoes don’t offer the same benefits and will necessitate the use of an orthotic insert to accommodate these concerns. Fortunately, the manner in which the upper’s Boa system secures the wearer’s midfoot is helpful for those with pronation issues, although it isn’t as helpful as a dedicated gait correction shoe.
Terrain
Terrain

Terrain

These are casual running shoes intended to be used on casual running surfaces. For the most part, this means that wearers of the New Balance FuelCore Sonic should stick to man-made running terrains such as a sidewalk, track, or road. These shoes are sturdy enough to handle some low-intensity natural surfaces such as a grassy field or soft dirt, but they don’t have enough traction or stability to accommodate more severe forms of terrain such as a hiking trail or inclined mountain path. Additionally, the manner in which this shoe’s outsole is designed means that they won’t provide adequate traction in wet environments, so extra caution will need to be exercised if the wearer plans on running in the rain.
Price
Price

Price

The average running shoe tends to cost somewhere below $100, and these New Balance shoes are no exception to this rule. While previous models from this manufacturer with heavier insulation and alternative width sizing may have cost more than average, the modernized FuelCore Sonic costs significantly less. In fact, these shoes have dropped in price from their initial retail cost due to the time they’ve spent on the market. Now, it’s possible to find some sizes and colorways for less than $50 with a bit of sleuthing. On the other hand, increased scarcity due to age has led to some particular sizes and color options costing many times more than the average, so discretion is important when selecting a model for purchase.
Traction
Traction

Traction

As was previously mentioned, the New Balance FuelCore Sonic offers a decent level of traction for runners thanks to its hard rubber outsole. This material is abrasion-resistant and has several large lugs that form a tread pattern intended to ensure a consistent level of grip on a variety of casual running surfaces. However, it is worth noting that this rubber material doesn’t have any sort of coating or special technology that ensures adequate grip on wet surfaces. For that reason, it isn’t recommended that runners wear the FuelCore Sonic for running sessions on rainy days or immediately after a rainstorm. If they do find themselves in this sort of situation, however, it definitely isn’t recommended that they run at their full speed in these sorts of environments as slippage is likely to occur.
Flexibility
Flexibility

Flexibility

When compared to products made by New Balance in the past, the FuelCore Sonic has an impressive degree of flexibility. Starting from the bottom, the large horizontal grooves allow the hard rubber outsole to bend comfortably without degrading the material and compromising its stability or durability. In regards to the midsole, the REVlite material is lighter and can provide more flexibility than a more dense and sturdy EVA foam. Finally, the upper is made almost entirely out of air mesh, which is able to bend like a reed in the wind thanks to its ample perforation implemented for the sake of breathability. The end result is an experience that is fairly different from the traditional New Balance shoe, which may require some getting used to.
Stability
Stability

Stability

While the New Balance FuelCore Sonic offers a great deal of flexibility, there is just enough stability present in its design to prevent the wearer from losing control during the average running session. This can mostly be found on the very top and very bottom of the shoes, although the REVlite midsole does what it can in this regard in spite of its comparatively diminished density. The outsole’s hard rubber construction ensures that the parts of it that aren’t bending from the wearer’s natural foot movements are at a controlled angle without much movement, and the upper portion’s bootie-style construction enables the wearer to run in tandem with their footwear. It isn’t quite as stable as a solid trail running shoe but it is certainly stable enough for the average runner.
Drop
Drop

Drop

The aforementioned REVlite midsole that makes up the middle of each New Balance FuelCore Sonic running shoe has a difference in elevation between the heel and forefoot of around 6 millimeters. This means that the wearer’s heels are slightly elevated when wearing these shoes, with the extra height being taken up by extra foam padding. The benefit to this design style is extra shock absorbing capabilities provided for heel strikers since the extra material serves as a defensive shield. This design element also guarantees greater responsiveness for heel strikers, resulting in a shoe that is very friendly for the vast majority of runners who prefer to strike the ground in this manner.
Key Features
Key Features

Key Features


  • Hard abrasion-resistant rubber outsole with treads and flex grooves

  • REVlite midsole emphasizes lightweight and responsive cushioning

  • Boa System laces promote midfoot support and a unique style

  • Bootie-style upper provides stability and comfort

  • Breathable air mesh

Bottom Line
Bottom Line

Bottom Line

New Balance continues to redefine their products and brand image to varying degrees of success. When it comes to the FuelCore Sonic, however, they seem to have found an effective formula. Although it bears very little resemblance to the products that initially put them on the map, these shoes are an original idea that doesn’t simply ape concepts from popular products from other footwear manufacturers. While it may not be as popular as the latest from Adidas or Nike, these shoes are certainly capable of finding a niche audience of their own.