Frost
Frost
An ankle boot with warm lining and GripStep friction sole. The GripStep sole structure combines the PU and TR rubber grip properties to guarantee maximum grip. The leather upper is decorated with nubuck detailing and stitching. The edge is decorated with split leather. Insoles with aluminium layer keep the warmth inside and the cold outside. Laces and a zipper.
Antistatic
Antistatic footwear releases in a controlled manner static electricity accumulated in the body. The resistance limits are 100 kΩ - 1000 MΩ.
Shock-absorbing heel
Shock-absorption of the heel is a requirement of EN ISO 20345:2022 and EN ISO 20347:2022 standards: the shock absorption of the footwear must be at least 20 J. In all Sievi footwear the cushioning effect is guaranteed by the use of FlexStep® sole material, see FlexStep® for more information.
Warm lining
The footwear is suitable for cold conditions. Depending on the model, the insulating material is lamb’s wool, artificial fur or PrimaLoft® insulation.
Zipper & shoe laces
The shoe features a zip and lace fastening, making them easy to put on and take off.
ALU insole
Sievi ALU insole features a heat-insulating aluminium layer. The aluminium foil of the insole reflects the cold out and the heat inward.
ESD
Through its sole construction, ESD footwear provides a safe and controlled method of discharging the body’s static electricity. The resistance limits 100 kΩ - 35 MΩ for the Sievi ESD footwear are stricter than for antistatic footwear (IEC 61340-5-1). Wearing ESD footwear can help you avoid damage to sensitive electronic equipment.
FlexStep®
The microporous FlexStep® sole material developed by Sievi maintains its excellent shock absorption and flexibility in freezing conditions. The structure of the FlexStep®flexible sole prevents strain on the feet and spine and absorbs shocks. The FlexStep® flexible sole is featured on all Sievi footwear.
GripStep
Sievi GripStep is a unique sole structure that combines the friction properties of polyurethane and TR rubber on the tread to maximise grip. The sole grips firmly on cold and slippery surfaces. Thanks to the dual structure, the sole is also flexible and shock absorbing.
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SizeProductGTIN
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3938-12613-523-45M6438157133298
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4038-12613-523-45M6438157133304
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4138-12613-523-45M6438157133311
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4238-12613-523-45M6438157133328
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4338-12613-523-45M6438157133335
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4438-12613-523-45M6438157133342
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4538-12613-523-45M6438157133359
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4638-12613-523-45M6438157133366
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4738-12613-523-45M6438157133373
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4838-12613-523-45M6438157133380