Good to know

- The Mizuno WaveKnit S1 is a running shoe that is made for those who have neutral pronation. The lightweight construction of this shoe contributes to speedy and flexible performances. The façade bolsters this accommodating construction as it uses a knitted fabric, a material that is making strides in the running shoe industry.

- Underfoot cushioning is the responsibility of multiple elements, including two foam layers and a thermoplastic ‘Wave’ that steadies the heel and assists the smoothness of the heel-to-toe transitions. Carbon rubber protects the midsole technologies from the abrasive nature of the surfaces while deep flex grooves encourage the flexibility of the foot.

The WaveKnit S1 was constructed to be true to size. Runners can use their usual sizing expectations when they’re eyeing for a pair. Widthwise, the available options are D – Medium and B – Medium for men.

A medium profile graces this Mizuno running shoe, thus is caters to those who have regular or low volume foot dimensions. The semi-curved shape of the lasting board and the sock-like structure of the upper mimic the inherent curve of the human foot.

The outsole unit of the Mizuno WaveKnit S1 is comprised of X10, a carbon rubber-based layer that protects the midsole from the abrasive nature of the asphalt. It has been touted as a highly durable compound that confidently staves off wear-and-tear while also doling out adherence over the ground.

Deep flex grooves grace the forefoot section of the external pad, as well as the transition rail of the lateral section. These trenches are designed to make the platform as flexible as possible, thus allowing the foot to move naturally through the gait cycle.

The decoupled heel isolates the impact shock of the foot-strike and smoothens the transitions through the gait cycle.

The midsole unit of the Mizuno WaveKnit S1 uses two layers of foam. The first one is the U4ic, a topsole that carries the foot and keeps it free from impact shock and movement deviation. It is flexible yet slightly firm, giving the foot a platform that isn’t wobbly or unwieldy.

The second foam that graces the midsole is the U4icX, a bottom layer that is responsible for receiving the brunt of the foot-strike and the weight of the foot. This feature is fundamentally a softer version of the U4ic. A full-length implementation is applied to the WaveKnit S1, unlike some series like the Wave Rider and the Wave Inspire which implements a wedge version.

The Mizuno Wave is a thermoplastic piece that is sandwiched between the two primary cushioning technologies. This midfoot-to-heel accoutrement is tasked with steadying the position of the foot, keeping it from buckling or accidentally shifting its stance.

A Premium Insock is placed on top of the lasting board of this product. It offers an extra oomph to the underfoot experience. It can be removed or replaced with a custom insert if the wearer chooses to do so.

The upper unit of the Mizuno WaveKnit S1 uses a knitted fabric, an element that exhibits a wrap that is similar to wearing a sock. The smooth configuration of the fibers prevents the skin from getting irritated. Breathing pores that widen as the material stretches and follows the shape of the foot are tasked with accommodating the flow of air into the interior compartment.

The sides of the façade have tightly woven portions to act as reinforcements and accents that boost the upright structure of the upper unit. They double as striped highlights that aim to make an impact on the visual aspect.

The Mizuno logo has been printed onto the sides of the silhouette as a determinant for brand recognition. These prints also double as overlays that help with the security of the foot.

The padded tongue and collar are made to cushion the upper portion of the foot, including the Achilles tendon, the ankles, and the instep. In-shoe wobbling and unintentional shoe removals are also incidences that are to be prevented by these parts of the façade.

The traditional lacing system is composed of discreet eyelets and a set of semi-flat laces. The mix of these elements results in an arrangement whereby the fit is adjusted through the manipulation of the tightness or looseness of the crisscrossing strands.


The current trend of Mizuno WaveKnit S1.
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Jens Jakob Andersen
Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.