Search
nl-BEfr-FRen-GB

technology

LIgHT

Each boot uses the INSU-ULTRA FOAM construction, which provide light and very comfortable footwear. They are also waterproof and insulated so the Grub's boots are very functional.

SPORTy

Our boots are focused on active movements. Thanks to the absorbing sports sole, this leads to an optimum carrying and running comfort with exceptional grip on all types of surfaces.

WARM and waterproof

For the production of our shoes and boots we used for the insulation Chloroprene. Chloroprene has a fine microcellular structure with numerous qualitative features such as temperature resistance, elasticity, abrasion resistance, etc. 100% waterproof to the top.

GRIP

Grub's is the only brand that uses self hardening layers of epoxy impregnated material to stiffen the toe and underfoot chassis of our boots to give a sure footed platform and a protective toe that can take the same sort of knocks as high end mountaineering footwear.


 

insulation and heat

For each boot we use the ULTRA-FOAM INSU construction, which is both waterproof and insulating and which makes the boots suitable for temperatures down to -20 °C. This material is also used for diving equipment, stretches up to 300% and has become increasingly nicely.

Grub's uses different technologies that determine the quality and comfort of the footwear. We distinguish different types of chloroprene.

 

3.5 technology

3.5 Technology has INSU-FOAM ULTRA™ has a fine micro cellular structure, which stops heat transfer through its structure. The microscopic bubbles or air are so small that it is waterproof even in 3.5mm thickness with a comfor ranges sub-freezing to 30ºC.

5.0 technology

5.0 Technology has INSU-FOAM ULTRA™ bootie lined with moisture wicking terry knit, which keeps the wearer dry and has a super 100% stretch to fit most calves and will keep the wearer’s foot comfortable in a range of -10ºC to 30ºC  for a prolonged period.

8.5 technology

8.5 Technology uses INSU-FOAM ULTRA™ bootie with polyester fleece lining combined with our HIGHLOFT™ liner, made from thousands of tiny fibres that allow air to circulate and trap heat, like down feathers. The liner wicks away excess perspiration and creates a comfortable temperature range of -40ºC to 15ºC.

12.0 technology

Our ultimate cold weather technologies uses 8.5mm INSU-FOAM ULTRA™ to increase the barrier between the wearer and the envirnoment. Unlike the felt liner used in pack boots, it does not over heat the foot which can lead to skin irritation. Instead it keeps the foot temperature in balance thanks to the air circulating properties of Highloft™. -50ºC to 10ºC.

 

indoor and outdoor soles

Protecting your feet is important. Grub's is the only brand that uses self hardening layers of epoxy impregnated material to stiffen the toe and underfoot chassis of our boots to give a sure footed platform and a protective toe that can take the same sort of knocks as high end mountaineering footwear.

The Grub's boots offer a specific outsole for each sector regardless of background or situation you are in.

TREDZ

Duraprene rubber

Stability
The foot frame provides stability and increases the resistance in the arch.

Hexzorb
Hexzorb The technology incorporates a shock-absorbing component in the heel.

Grip zone
Our Twist grip 'nails' hold in soft surfaces.

Traction
The large Siping blocks behave like little grooves in a tire, they expel fluid, increase the contact with the ground and reduce aqua planning.

hexzorb

The Hexzorb technology incorporates a shock-absorbing component in the heel. Hexzorb reduces shock to the knee and lower back. In this feature better grip and traction on any surface, with Duraprene Outline pattern and a 90 ° heel plug that prevents slipping on the stirrup.

 

herringbone

The herringbone outsole provides excellent grip on most surfaces.
 

Trax

Grip zone - front
The small grooves ensure maximum grip when the foot print itself.

Stability Slots - middle
Balances the foot while he rolls.

Grip area - heel
Maximum grip when the heel hits the ground.

Traction
Large grooves help steps.

Lateral stability grooves
Balances the foot when walking.

Slow Down
Helps you slow down when driving downhill.

multisport Vibram

The Vibram sole has an open self-cleaning design that offers traction and safety, thanks to the rock profile you can move your foot easily, especially on flat terrain.

Grip zone
Several small grooves provide maximum grip.

Traction
The Vibram Multi-traction grooves provide traction at 360°C.

Stability
Large grooves for extra stability.

Slow Down
A cut heel helps you slow down during a descent.