Nike ACG Mountain Fly - Phantom Gray - IQ9789-062

Experience superior performance with the Nike ACG Mountain Fly trail running shoes. Engineered for...

Best current price£201.00from KICKSCREW

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2 offers from £201.00 - £212.00

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KICKSCREWNike Men's Phantom Gray/Deep Red/Matte Olive Green X Acg Mountain Fly Low Gore-Tex Se '' Iq9789-062
£15.00 delivery
£201.00
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JoomNike Men's Gray Acg Mountain Fly Trail Running Shoes White Iq9789-062 Cm
£3.00 delivery
£212.00
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Product Information

Full details

The Nike ACG Mountain Fly is engineered for outdoor enthusiasts and trail runners who require reliable durability and comfort on rugged, unpredictable terrain. It excels by providing superior grip and advanced cushioning, ensuring protection during demanding hikes or trail sessions, though users should note that the specialized outsole may show faster wear if worn exclusively on abrasive urban pavement.

All features

Model Part NumberIQ9789-062
BrandNike

Extended Product Information

FAQs

Are these shoes waterproof?

The Nike ACG Mountain Fly is designed for durability and protection, but it is not marketed as a fully waterproof shoe. It will handle light moisture, but submersion may result in water ingress.

Can I use these for road running?

While they are comfortable, the outsole lugs are designed for soft surfaces. Running on roads will cause the rubber lugs to wear down significantly faster.

How should I clean the mud off the soles?

Use a stiff brush under running water after your hike to clear mud from the lug gaps before it hardens.

Do these run true to size?

Most users find the ACG line fits true to size, though the supportive build is more structured and snug than a standard lifestyle sneaker.

Is the sole replaceable?

No, the outsole is permanently bonded to the midsole. Once the tread is worn thin, it is time to replace the footwear to maintain traction.

Troubleshooting

Debris getting inside the shoe

Consider using a gaiter with your footwear if hiking in high-dust or loose-scree environments.

Midsole feeling stiff in cold weather

Allow the foam to warm up during your warm-up walk; the materials are designed to become more responsive as you increase your activity level.

Pros and Cons

Pros

  • Exceptional traction on varied trail surfaces
  • High-level impact absorption for long-distance comfort
  • Durable construction resistant to trail hazards
  • Sleek and versatile aesthetic design

Cons

  • Not optimized for extended use on concrete or asphalt
  • Heavier than standard minimalist road running shoes
  • Limited breathability compared to lightweight summer mesh shoes

Setup, Compatibility & Care

To maximize the lifespan of your Mountain Fly shoes, ensure you select the correct size, as the supportive fit is snugger than traditional running sneakers. For maintenance, remove loose dirt and debris after each use with a soft-bristled brush. If the shoes become muddy, hand-wash them using cool water and a mild detergent; avoid using a washing machine, as this can degrade the specialized adhesives and structural reinforcements. Always air dry your shoes away from direct heat sources, such as radiators or direct sunlight, to prevent the midsole foam from hardening or deforming.

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