Boots developed for and suited to hunting in the mountains They all offer good support and torsional rigidity for secure use on uneven terrain and when traversing. They are generally higher than standard boots to give the ankle and part of the calf better protection. The Hydrobloc leathers are thicker to ensure the greatest protection from water and snow. Vibram soles offer great grip and durability. The R.R.S. protects the upper and prevents the leather from deterioration caused by cracking, cuts and scratches.