Military Specifications 1000d Cordura Barry compliant Quarterchaps. 5 bands of strapping fastens to you leg with tenacity. Replaceable Velcro brand straps that feed through 5 channels sewn in the face of the leggings. Fits up to a 24” thigh. The backing material is. 300 series pole fleece moisture wicking and very soft hand. Machine washable when dirty hang to dry when wet. This style is the ultimate for rough mountain hikes sliding down rock walls utilizing your legs for stabilizing your landing. Or kneeling on the ice or snow playing outdoors. Riding arc or motorcycle you will appreciate the way you put these on. There is nothing else like it in the world. The patented design offers a air gap on the back of your leg allowing air to ventilate and keep you comfortable even in hot weather. The patented design has no material behind the knee offering unrestricted movement when using them as knee pad comfort. And keeping the high jet from burning your legs. Replicable straps are available after hundreds of on and off. The replaceable straps are $20.00 plus shipping. Less than 13 oz. this is the new standard in knee and shin protection.