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Merrell Siren 4 Thermo Mid Zip Waterproof Boot

Merrell Siren 4 Thermo Mid Zip Waterproof Boot

Regular price £143.99
Regular price £159.99 Sale price £143.99
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The Merrell Siren 4 Thermo Mid Zip Waterproof Boot is designed to protect and support your feet in any season.

This boot features a female-specific fit and waterproof construction with thermo-mid zip closure for extra warmth and protection. Its durable soles provide superior grip and stability on wet and slippery surfaces.

  • Best for: Winter Hike
  • Insulation: 200 grams Primaloft Gold Eco Series synthetic insulation. Solarcore Aerogel insole provides underfoot superior warmth while being extremely flexible and ultra-thin.
  • Waterproofing: Waterproof full-grain leather upper, complete with a waterproof membrane seals out water and lets moisture escape.
  • Traction: Vibram Arctic Grip All Terrain outsole is designed to effectively extend the winter traction season, due to its enhanced durability and versatility.

Comfort Features:

  • • Heavy-duty, Waterproof, YKK zipper for easy on and off
  • • Protective and abrasion-resistant rubber toe cap
  • • Cleansport NXT treated for natural odour control
  • • FloatPro Foam midsole for lightweight comfort that lasts


  • • Waterproof full-grain leather and knit upper
  • • 100% recycled laces and webbing
  • • 100% recycled fleece lining
  • • 100% recycled mesh footbed cover
  • • 5% recycled PU removable footbed

Additional Measurements:

  • • Stack Height: 28.5-20.5mm
  • • Drop: 8mm
  • • Lug: 5mm
  • • Half pair weight: 1lbs-3.04oz, 540g


MPN: J037412

Gender: Female


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