Merrell Nova 4 Trainers - Brown - 12.5 UK

A trail best seller, reimagined to blend waterproof running performance with a clean design for we...

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Product Information

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The Merrell Nova 4 Trainers are designed for adult trail runners and outdoor enthusiasts who need a reliable, waterproof shoe that balances rugged trail performance with a versatile aesthetic suitable for casual wear. These trainers offer the perfect blend of lightweight cushioning and aggressive traction to keep you comfortable on uneven terrain, though users should note that the waterproof membrane, while excellent at sealing out moisture, may reduce overall breathability during high-intensity activity in warm climates.

All features

Age Groupadult
ColourBrown
GenderMale
Shoe Size UK12.5
Shoe TypeTrainers
SeriesNova 4
Model Part NumberJ00005519
BrandMerrell

Extended Product Information

FAQs

Are these shoes suitable for road running?

While they can handle road sections, they are specifically optimized for trail environments and may wear down faster if used primarily on abrasive pavement.

Do the Nova 4 trainers run true to size?

Most users find they fit true to standard athletic shoe sizing; however, since these are trail shoes, consider if you prefer extra room for thicker hiking socks.

Can I put these in the washing machine?

No, machine washing can damage the waterproof membrane and the structural integrity of the foam midsole. Hand cleaning is recommended.

How long does the cushioning last?

The FloatPro Foam is engineered for durability, typically maintaining its supportive properties throughout the expected life of the shoe's outsole.

Is the upper material breathable?

The engineered mesh is designed to be breathable, but because it contains a waterproof membrane, it will be less breathable than a non-waterproof trainer.

Troubleshooting

Water entering the shoe during heavy rain

Ensure your gaiter or pant cuff is covering the collar to prevent water from running down into the shoe interior.

Feeling of slipping on very smooth, wet surfaces

Check the outsole for compacted mud or debris; clean the Quantum Grip treads to restore maximum traction.

Footbed feels loose or shifts while running

Remove the footbed, clean the interior cavity of the shoe, and reseat it properly to ensure it is centered.

Pros and Cons

Pros

  • Excellent traction on technical terrain
  • Lightweight and comfortable for long-distance wear
  • Effective waterproof protection
  • Versatile design transitions well from trails to daily use
  • Enhanced flexibility for natural foot movement

Cons

  • Waterproof membrane can feel warm in hot weather
  • Requires proper sizing for optimal comfort
  • Stiffer feel compared to non-waterproof road running shoes

Setup, Compatibility & Care

Before your first outing, ensure the shoes are laced snugly to utilize the arch support provided by the construction. To maintain the waterproof efficacy, avoid using harsh chemicals or machine washing, as this can degrade the membrane and rubber adhesive. To clean, use a soft-bristled brush to remove dried mud and a damp cloth to wipe down the exterior mesh. Allow the shoes to air dry naturally away from direct heat sources, such as radiators, which can warp the FloatPro foam or damage the synthetic upper. If the removable footbed becomes overly compressed, it can be replaced with a third-party orthotic if desired, though the stock 50% recycled EVA footbed is designed to complement the shoe's overall structural geometry.