adidas Yeezy Quantum - Frozen Blue - Trainers - Size UK 9

The Adidas Yeezy Basketball 'Frozen Blue' is a performance-ready hoops shoe. It features a textile...

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Full details

The Adidas Yeezy Quantum Frozen Blue is a high-performance, unisex basketball trainer designed for athletes and collectors who demand both court-ready utility and bold aesthetic flair. Featuring a responsive Boost midsole and a reinforced high-top structure, this shoe excels in providing stability and energy return; however, the structured fit and high-top design may require a brief break-in period for those unaccustomed to performance basketball footwear.

All features

GenderUnisex
Age Groupadult
ColourBlue
Accent ColourWhite
MaterialLeather
Shoe TypeTrainers
Shoe Size UK9
SeriesYeezy Quantum
Model Part NumberGX5049
Brandadidas

Extended Product Information

FAQs

Are these shoes true to size?

The Yeezy Quantum typically fits snug due to the high-top performance design; many users prefer to go up a half-size for extra room.

Can I use these for outdoor basketball?

While they feature a durable outsole, they are primarily designed for indoor hardwood surfaces to protect the knit upper and outsole patterns.

How do I care for the Boost midsole?

Wipe the TPU-encased midsole with a damp cloth; avoid harsh chemicals that might cloud the translucent finish.

Is this a unisex shoe?

Yes, this model is designed as a unisex trainer with sizing provided in standard UK adult measurements.

What is the benefit of the TPU-encased midsole?

The TPU casing protects the Boost foam and provides additional lateral containment, preventing the foot from rolling over the midsole edge.

Troubleshooting

Knit upper appears slightly loose after heavy use

Ensure the laces are tensioned correctly through the eyelets and check that the heel counter is properly positioned against the back of your foot.

Outsole losing grip on dusty surfaces

Wipe the herringbone rubber outsole with a slightly damp cloth to remove accumulated dust and restore traction.

Pros and Cons

Pros

  • Excellent ankle support due to the high-top construction
  • Superior impact protection from the full-length Boost technology
  • Highly durable outsole with professional-grade traction
  • Breathable material construction keeps feet cool during play

Cons

  • High-top design can feel restrictive for those preferring low-cut shoes
  • Requires a break-in period to soften the materials
  • Intricate knit and overlay design requires careful maintenance

Setup, Compatibility & Care

To ensure the longevity of your Adidas Yeezy Quantum trainers, it is recommended to wear them with performance-oriented socks to manage moisture effectively. Because the upper features a knit fabric, avoid exposing the shoes to excessive mud or harsh outdoor environments. To clean, use a soft-bristled brush with mild soap and cold water to gently scrub the knit surfaces; do not submerge the shoes or machine wash them, as this can degrade the Boost foam and adhesive. Allow the shoes to air dry away from direct heat sources like radiators to preserve the shape of the neoprene collar and heel counter.