Alta Superflex Knee Pads reduce stress and fatigue to the knees, allowing you to work longer and more effectively. Alta pads are lightweight, but have a full 1/2-inch layer of foam padding. 1000 denier Cordura nylon outer fabric provides excellent abrasion resistance and durability. Rubber caps on Alta Knee Pads grip the surface to prevent sliding. Unique ‘Alta Lock’ buckle fastening system allows for greater articulation with the knee, while reducing the issue of the pad slipping down the leg.