Techincal features of the boot include a double density sole unit for good shock absorbency; Digafix lacing system to ensure a secure fit; Softer compression zone at the back of the boot to reduce the pressure on the Achilles when walking downhill and a soft lower cut cuff which ensures superb comfort (see above) Suitable for hill walking and lower level routs throughout the UK and Ireland The Air Active footbed wicks away moisture generated by the foot ; the sole unit is self cleaning, shedding mud as you walk. The boots should be cleaned of any mud or dirt prior to waxing. Apply Meindl Sportwax to the upper to keep the leather soft and supple, it is recommended that you clean your boots each time you have used them. The Goretex lining should be washed every 6 to 12 months dependent on useage. Fill the boot with a water and mild detergent solution and then swill it around prior to rinsing with water. This will clean the Goretex lining and improve its effectiveness All Meindl boots can be resoled at the Meindl factory in Germany as long as the upper is in good condition. Meindl footwear stands for quality and tradition along with state of the art technical features and innovations.