Adidas Ultra Boost vs Nike Flyknit Racer

Adidas and Nike have become fierce competitors to each other for quite a long time. For runners and casual users, Adidas’s Ultra Boost and Nike’s Flyknit Racer are indeed tough choices. Both of these two shoes are designed as lifestyle running shoes. The two have stylish, modern looks, and the two also come with great cushioning soles. Still, there are notable differences between Adidas Ultra Boost vs Nike Flyknit Racer on several aspects, such as the comfort, durability, and performance. So, which model does deserve the title of the best lifestyle running shoe?

Upper Fit and Comfort
Both Adidas Ultra Boost and Nike Flyknit Racer come with their own upper designs. In general, both shoes fit well and are comfortable. However, Adidas Ultra Boost is on a better edge compared to Nike Flyknit Racer, as it fits quite snugly without causing any discomfort and is breathable.

Adidas Ultra Boost features the Primeknit upper, which offers adaptive support and ultra-light comfort (take a look: Adidas Ultra Boost vs NMD). On each side of the midfoot area, you can find a familiar three-striped pattern in the form of no-sew overlays. These overlays are pretty thick, yet flexible. If you observe closely, you will notice that the stripes are actually connected to the lace eyelets. As the effect, these overlays can respond and adapt to how you adjust your lacing. Hence, the fit is snug and supportive.

On the other hand, Nike Flyknit Racer comes with the Flynit upper, which is designed for breathability and support. Unlike Adidas Ultra Boost, Nike Flyknit Racer does not have thick overlays on the sides. Instead, the system uses webbing structures that are integrated into the upper. The fit is also quite adaptive and responsive, but the support is not as great. Still, the shoe feels light and swift, which is good.

Cushioning
There is a noticeable difference regarding the cushioning of Adidas Ultra Boost vs Nike Flyknit Racer. Once again, Adidas Ultra Boost holds the better edge. The cushioning is definitely more comfortable. It is equipped with the Boost cushioning technology to deliver great comfort and responsiveness. It returns the energy of the road impact to promote your pace.

The cushioning of Nike Flyknit Racer, on the other hand, is relatively firmer and stiffer. Hence, it is not as comfortable as Adidas Ultra Boost. But the stability and ground contact is good.

Outsole
On the outsole of Adidas Ultra Boost, you can find the Torsion system located between the forefoot and the heel. This feature enhances the stability of the ride. The tread pattern features multiple circular lugs which promote the grip and traction on various surfaces.

On the other hand, Nike Flyknit Racer features a Waffleskin rubber outsole which sports a racing-specific diamond pattern. The outsole has decent grip and traction. It is also quite durable.

- Textile and Synthetic
- Rubber sole
- Shaft measures approximately low-top from arch
- Boost is our most responsive cushioning ever: The more energy you give, the more you get
- Adidas Primeknit upper wraps the foot in adaptive support and ultralight comfort
- Flyknit
- Rubber sole
- Flyknit upper for breathability and support
- Forefoot Nike Zoom Air unit and full-length Phylon midsole for lightweight, responsive cushioning
- Waffleskin rubber outsole with racing-specific diamond pattern for lightweight durability and traction

Conclusion
Between these two running shoes, Adidas Ultra Boost comes out as the winner. It can give a better fit and more comfortable cushioning. The overall performance makes it a great choice for running. On the other hand, Nike Flyknit Racer is also a good running shoe, but this model just can’t beat Adidas Ultra Boost’s comfort.

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