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Sievi Frost winter ankle boots O1 with a warm lining for cold weather. Antistatic; the GripStep® sole combines the grip properties of microporous polyurethane and TR rubber and holds firmly on cold and slippery surfaces. The two-layer sole is flexible and absorbs shocks. An insole with an aluminium membrane increases thermal insulation.

Key features

  • Laces at the front and side zip
  • Antistatic (A)
  • Shock-absorbing heel (E)
  • Oil-resistant sole (FO)
  • Slip resistance SRC

Materials

  • Upper: quilted leather
  • Insole: with aluminium membrane
  • Outsole: GripStep® PU/TR

Standards and certificates

  • EN ISO 20347 O1 SRC FO