Merrell Women's Siren 4 Thermo Mid Zip Waterproof

$126.26
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Dispatch time 1-2 business days

Women's winter shoes with high traction soles, and technical insulation.

The Siren Thermo boasts a waterproof membrane, 200g/m² synthetic insulation and Solarcore Aerogel insoles. A zipper makes for easy on and off.

The FloatPro midsole offers a nice, soft stride feel - your daily range won’t be hindered by lack of cushion.

  • Waterproof structure
  • Surface materials: leather and beautiful knit cuff
  • Rubber toe and heel protection
  • Primaloft Gold Eco synthetic insulation
  • Fleece liner, recycled fiber
  • Solarcore insoles
  • Vibram Icetrek outer sole, purposefully made for winter conditions
  • Cleansport NXT anti-odour treatment
  • The laces and webbing are made of recycled materials
  • Heel stack 28.5 mm, front stack 20.5 mm, drop 8 mm

As a fun little detail: the Solarcore material used in the insoles is originally developed by NASA.