39 - 48
Product code
Safety class
EN ISO 20347: O1 SRC
Upper material
Full grain leather

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.

Warm lining

Footwear displaying this symbol can be worn in cold
environments. The material keeping the cold out is either lamb’s
wool or artifi cial fur. Additionally, some styles are lined with
Thinsulate™ fi ber.


The shock-absorbing heel area protects the feet and the skeletal system against stress. The product meets the requirements of EN ISO 20345:2011 and EN ISO 20347:2012: the shock absorption capacity of the footwear is at least 20 J. The cushioning effect is guaranteed by the use of FlexStep® sole material in all Sievi footwear.


Footwear designed with antistatic features, discharges the
body’s static electricity up to tolerances of 100 kΩ - 1000 MΩ.


Models marked with this symbol have a useful zipper.

Thermo Alu

Sievi ALU insole features a heat-insulating aluminium layer. The aluminium foil of the insole reflects the cold out and the heat inward.


Sievi’s new GripStep® is the only sole structure on the market, where the friction properties of microporous polyurethane and TR rubber have been combined on the tread in order to maximise the grip. The sole grips firmly on cold and slippery surfaces. Thanks to the dual structure the sole is also flexible and shock absorbing. It feels comfortable from your first step.