Upper Material
Waterproof leather, hydrophobic, breathable 2.5 – 2.7 mm thick.
Inner Lining
GORE-TEX® Extended; waterproof and very breathable. Highly abrasion-resistant lining with excellent climate comfort. Especially for flexible interchangeable indoor and outdoor use and at warmer temperatures.
Plastic/Non-woven sole
Moisture-absorbing, dimensionally stable, torsion-proof, avoids punctual preasure (e.g. of stones).
Insole
Comfortable, damping and moisture wicking. Separate heel cup provides good cushioning and foot guidance.
Sole
Rubber/PU walking sole with proven street/ terrain tread, wear resistant and non-slip traction; large, bevelled contact surface and superior bending comfort. Fuel-Oil resistance and non-marking characteristics. Heat and cold resistant. Compliant with EN ISO 20347:2012.
HAIX® Climate System
The HAIX® Climate system uses the pumping movement, which permits air circulation with every step – warm air is released and fresh air comes in through the vent holes at the top of the boot.
HAIX® 2-Zone Lacing
Two Zone Lacing System enables a seperate adjustment of the boot to the foot and leg area.
Sun Reflect
Reduces the heating effect of the upper leather by direct sunlight. Sunlight is reflected by the leather, keeping the leather and the feet cooler.
Others
Lacing system with smooth-running lacing elements, very good heat and cold insulation, pulling strap, manually applied rubber sidewall on the front and back of the boot for a better durability, black sole, antistatic.
(1) 
Oskari U.
Tighter fit than its predeccessor
After relying on the absolutely brilliant KSK3000's for over a decade of use and abuse, it was a no-brainer to choose the Commander GTX as their successor - especially after customer service...