Frost TR XL
Frost TR XL
This warm ankle boot with wool-blend lining comes with a sturdy TractionPro® friction sole for extra grip on slippery surfaces. The aluminium foil on the insole keeps the cold out and the heat in the boot. The upper is made of top-grain leather and nubuck. The boot has laces, a zip and a spacious XL fit. ESD approved.
Antistatic
Antistatic footwear releases in a controlled manner static electricity accumulated in the body. The resistance limits are 100 kΩ - 1000 MΩ.
Water repellent
The upper material used in this footwear is water repellent. Its water resistance meets the requirements of the EN ISO 20345:2022 standard.
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.
Double density PU/RU
The footwear sole consists of polyurethane and rubber. The PU/rubber friction sole features excellent grip and wear resistant properties. The mid-layer of the sole is made of shock absorbing FlexStep® material. Heat resistant up to 300°C.
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.
XL-last
Sievi XL ranges. These extra wide styles offer more space and comfort for the wearer. For footwear with XL width fittings see “XL” in the product name.
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.
TractionPro
Sievi TractionPro® is a sturdy friction sole that gives stronger grip on slippery surfaces. The unique sticky rubber sole, together with the FlexStep® interlayer, developed by Sievi, ensure that the sole remains flexible in all conditions. The Sievi TractionPro® sole's structure and design, with its deep and sharp-edged tread profile, are designed to maximise friction and maintain grip on different surfaces.
UK Design No. 6227543
UK Design No. 6227544
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SizeProductGTIN
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3937-12614-243-45M6438157242518
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4037-12614-243-45M6438157242525
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4137-12614-243-45M6438157242532
-
4237-12614-243-45M6438157242549
-
4337-12614-243-45M6438157242556
-
4437-12614-243-45M6438157242563
-
4537-12614-243-45M6438157242570
-
4637-12614-243-45M6438157242587
-
4737-12614-243-45M6438157242594
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4837-12614-243-45M6438157242600