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Nike Ultrafly 2 are lightweight trail shoes designed for fast running on terrain. ZoomX foam and a carbon plate provide dynamism and fluidity, while the Vibram Megagrip outsole guarantees grip even on challenging surfaces.

Basic data

Brand Nike
Country of origin of the brand USA
Sport Running
Gender Male
Season Year-round
Leading colour Blue
Model/product code ACG Ultrafly 2 HF5668-400
Type of Product Neutral
Purpose Training
Code 2000209721

Purpose

Type of surface Site

Outsole

Outsole Vibram® MegaGrip
Midsole ZoomX
Depreciation High
Drop 6 mm

Outsole

Upper material Grid
Upper width Standard

Protection

Waterproof No
Breathability Yes

Additional information

Fastening type Laces
Reinforcements No
Technologies ZoomX, Vibram® Megagrip
Waga jednej sztuki 287 g
Reflective elements No

Warnings and producer's data

Producer Nike Retail, B.V. | Colosseum 1, 1213 NL, Hilversum Neatherlands | Product.Safety.EMEA@nike.com

Men's running shoes Nike ACG Ultrafly 2 baltic blue/court blue (HF5668-400)

Nike ACG Ultrafly 2 men's running shoes in baltic blue/court blue are the perfect solution for lovers of trail running. They are designed to provide maximum comfort and performance during training in demanding conditions. The upper made of high-quality mesh ensures excellent breathability, keeping the feet dry even during intense exertion. The standard fit width of the upper allows for a comfortable fit, providing stability and comfort while running.

ZoomX technology for exceptional cushioning

The Nike ACG Ultrafly 2 men's running shoes in baltic blue/court blue feature ZoomX technology, which is responsible for excellent cushioning. This modern midsole, made from innovative materials, provides extraordinary responsiveness and energy return with every step. Thanks to this, runners can enjoy smooth movement while minimising muscle fatigue during longer training sessions.

Vibram® MegaGrip outsole for maximum grip

The Nike ACG Ultrafly 2 model uses the Vibram® MegaGrip outsole, which is renowned for its exceptional grip on various types of surfaces. This solution ensures confident footing even on wet or slippery surfaces, making the shoes an ideal choice for trail paths. With it, runners can focus on covering further distances without worrying about stability and safety.

Nike ACG Ultrafly 2 men's running shoes - features:

  • Standard fit design providing a comfortable fit;
  • Upper made of mesh to increase breathability;
  • ZoomX midsole providing excellent cushioning;
  • Vibram® MegaGrip outsole ensuring maximum grip on different surfaces;
  • Shoelaces as a closure type for foot stability;
  • 6 mm drop supporting natural running dynamics;
  • Designed for outdoor training.

Product Details

Men's running shoes Nike ACG Ultrafly 2 baltic blue/court blue

Mesh upper providing breathability

The mesh construction of the upper facilitates efficient airflow while running. The material allows for quick moisture wicking from the feet, even during intense effort. During multi-kilometre routes, the breathable surface helps maintain dry skin throughout the workout.

Men's running shoes Nike ACG Ultrafly 2 baltic blue/court blue

Vibram® MegaGrip sole and grip

The strong contact with the ground is ensured by the Vibram® MegaGrip sole, which holds effectively on both dry and wet surfaces. The specially shaped tread increases friction where there is a risk of slipping on wet trails. During dynamic changes of direction, the foot maintains predictability of movement even when running on mud or stones.

Men's running shoes Nike ACG Ultrafly 2 baltic blue/court blue

ZoomX technology and cushioning

The advanced construction is based on the use of a ZoomX layer, whose main task is to absorb shocks during running. Upon landing, the foot receives support through effective impact force absorption, and then achieves a noticeable energy return during take-off. The runner feels the difference, especially over longer distances, when each subsequent push-off maintains the dynamics of movement regardless of fatigue.

ZoomX
ZoomX is an innovative material that uses compressed air and elastic fibres to effectively absorb shock and dynamically return energy. Thanks to this technology, users can achieve higher speeds while reducing stress on muscles, joints and tendons.
Vibram® Megagrip
Vibram® Megagrip® rubber provides exceptional grip on wet and dry surfaces, combining excellent traction with high abrasion resistance. Thanks to its balanced flexibility and grip, it performs well on varied terrain, even in conditions requiring precision and stability. It is a reliable solution for those navigating difficult terrain and variable weather conditions.
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Men's running shoes Nike ACG Ultrafly 2 baltic blue/court blue

Men's running shoes Nike ACG Ultrafly 2 baltic blue/court blue

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Size Sizes table
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Sizes table

    Below you will find information that will help you choose the right size when buying Nike shoes. All you will need is a tailor's tape measure.

    Please note the CM size displayed on shoe boxes and labels is different than Foot Length (cm)

    EU size 35,5 36 36,5 37,5 38 38,5 39 40 40,5 41 42 42,5 43 44 44,5 45 45,5 46 47 47,5 48 48,5 49 49,5 50
    UK size 3 3,5 4 4,5 5 5,5 6 6 6,5 7 7,5 8 8,5 9 9,5 10, 10,5 11 11,5 12 12,5 13 13,5 14 14,5
    US M Size 3,5 4 4,5 5 5,5 6 6,5 7 7,5 8 8,5 9 9,5 10 10,5 11 11,5 12 12,5 13 13,5 14 14,5 15 15,5
    AB Foot length (cm) 21,6 22 22,4 22,9 23,3 23,7 24,1 24,5 25 25,4 25,8 26,2 26,7 27,1 27,5 27,9 28,3 28,8 29,2 29,6 30 30,5 30,9 31,3 31,7

    How to measure the length of your foot - instructions in 4 steps

    1. Prepare a sheet of paper and set it on a hard, non-slippery surface - it is best to tape it to the floor.

    2 Stand barefoot on a piece of paper - distribute your body weight evenly and set your foot straight.

    3. Mark the tip of the big toe and the back of the heel - preferably holding the pencil vertically.

    4. Take off the foot and measure the distance between the marks - this is the length of the foot. Repeat for the other foot and choose a larger measurement, matching it to the size chart.

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