GORE-TEX – Guaranteed to keep you dry

Waterproof and breathable, Gore-Tex allows moisture (perspiration) to evaporate, keeping your feet dry and confortable at all times.

Gore-Tex technologies

The Gore-Tex­ membrane

GORE-TEX membrane possesses microscopic pores 20,000 times smaller than a water droplet, but 700 times larger than a water vapor molecule.

This unique combination stops water from penetrating offerings a long-lasting waterproofness and a very high breathability and remains high levels of breathability even during exertion. GORE-TEX shoes keep your feet dry and provide them great comfort.

"Explanation how Gore-Tex safety shoes work"

Proven quality under uncompromising testing conditions

What are the differences between WRU and WR standards?

WRU and WR are additional requirements of EN ISO 20345. 

The WRU marking is part of the basic requirements for S2 or S3 safety shoes. The test to obtain the WRU marking is carried out on the material(s) of the upper. An S3 safety shoe has an upper that is resistant to water penetration.

To obtain the WR marking, the entire shoe is tested. The WR mark indicates that the entire shoe is resistant to water penetration. This is usually due to the use of a waterproof/breathable membrane.

Gore-Tex Footwear by far exceeds the requirements of the standard EN ISO 20345/347 with respect to waterproofness, breathability and durability.

Durable Waterproofness

Gore-Tex Footwear has to withstand up to 300,000 flex movements (80 hours) in anklehigh water - without allowing one single drop of water to penetrate inside the boot. EN ISO standard 20344 requires only 4,800 flexes (80 minutes) and 3 cm2 water entry is allowed.


The materials used in Gore-Tex Footwear achieve a breathability value up to six times higher than the values specified in EN ISO standard 20345/47.


Inner lining and upper materials of Gore-Tex footwear have to withstand up to four times more abrasion movement than specified in by the EN ISO standard.

Models at a glance: Heckel safety shoes with Gore-Tex technology

The new Gore-Tex insulation technology

For outdoor working conditions, in great cold, works in mountains or cold-storage rooms, the new Gore-Tex footwear laminate development combines efficient thermal insulation with even 15% less weight with the same level of thermal protection.


Conventional insulation

more solid fibres increase weight | the flat 2D layered structure prevents air from entering | loss of insulating capacity when compressed | fibres bond together limiting flexibility

New Gore-Tex insulation

15% lighter | hollow and fewer fibres reduce weight | the 3D structure makes it possible to store more air for increased insulation | spiral effect ensures flexibility and comfort

Gore-Tex membrane keeps insulation dry

The durably waterproof and breathable Gore-Tex membrane ensures that the insulation is reliably protected against water penetration from the outside. At the same time, the sweat can easily escape to the outside in the form of water vapour.

The insulation stays dry and maintains its insulation efficiency. Your feet stay dry and comfortable.

Wet means cold, dry means warm !

Models at a glance: Heckel safety shoes with Gore-Tex insulation technology

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