Asics GEL-Quantum Trainers - Black - Green - 11.5 UK

The GEL-QUANTUM 360 I AMP sneaker celebrates the ten-year anniversary of the GEL-QUANTUM franchise...

Best current price£135.00from Slam Jam

Shoe Size UK
Colour
Accent Colour
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Slam JamAsics Men's Black Gel-Quantum 360 I Amp Sneakers / Edamame Green Size 11.5
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£135.00
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Product Information

Full details

The Asics GEL-Quantum 360 I AMP is designed for adult men who prioritize high-impact cushioning and heritage-inspired aesthetics in their daily trainers. Celebrating a decade of the GEL-Quantum franchise, this model delivers superior comfort through its signature 360-degree GEL technology, though its leather construction may feel heavier compared to modern minimalist running footwear.

All features

Age Groupadult
ColourBlack
GenderMale
MaterialLeather
Shoe Size UK11.5
Accent ColourGreen
Shoe TypeTrainers
SeriesGEL-Quantum
Model Part Number1203B082-001
BrandAsics

Extended Product Information

FAQs

Are these shoes suitable for long-distance running?

While they feature advanced cushioning, the leather construction makes these better suited for walking, lifestyle, and casual wear rather than intense long-distance running.

How do I determine if 11.5 UK is the correct size?

You should have approximately a thumb's width of space between your longest toe and the end of the shoe while standing.

Can the insoles be removed?

Yes, the insoles are removable, allowing you to insert custom orthotics if needed.

What is the purpose of the TRUSSTIC technology?

TRUSSTIC technology is a support element that adds structural integrity to the sole, preventing the shoe from twisting excessively during your stride.

Is the leather upper waterproof?

The leather is durable and water-resistant to a degree, but it is not waterproof; avoid wearing them in heavy rain to prevent water damage.

Troubleshooting

Leather looks dull or loses its finish

Use a leather conditioner specifically formulated for shoes to restore moisture and shine.

Squeaking sound while walking

This is often caused by moisture trapped under the insole; remove the insole, dry thoroughly, and apply a light dusting of foot powder.

Stiff fit upon first wear

Ensure you are using the correct lacing technique to adjust tension, and allow the leather to adapt to your foot shape naturally over 3-5 wears.

Pros and Cons

Pros

  • Comprehensive impact protection from 360-degree GEL
  • Durable leather construction for longevity
  • Stable platform for all-day wear
  • Responsive energy return with FF BLAST PLUS ECO
  • Iconic design honoring ten years of innovation

Cons

  • Leather material is less breathable than mesh alternatives
  • Heavier build compared to performance-focused running shoes
  • Limited to casual and lifestyle use

Setup, Compatibility & Care

To ensure your trainers last, follow these maintenance guidelines:

  1. Break-in Period: Because the upper is crafted from leather, the shoes may feel slightly stiff initially; wear them for short periods to allow the material to soften and conform to your foot.
  2. Cleaning: Wipe the leather upper with a damp cloth after exposure to dirt or salt. Avoid submerging the shoes in water, as this can degrade the leather and the adhesive.
  3. Storage: Keep your trainers in a cool, dry place away from direct heat sources, which can cause the leather to crack and the GEL units to lose flexibility.
  4. Compatibility: These are unisex-inspired silhouettes that fit true to standard men's sizing; ensure you verify your UK foot size (11.5 in this variant) to avoid friction points.

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