Features Durable Dyneema® Denim UHMWPE (ultra-high molecular weight polyethylene) outer shell Dyneema® denim is stronger than steel KEVLAR® from DuPont ™ strengthens knees, hips and buttocks including Trilobite® Premium protectors in the knees and hips certified according to EN 1621-2, height-adjustable in the knee area Stretch in the crotch, waist and knee area YKK zippers Ventilation zips five outer pockets extra high waist on the back double belt loops in front high abrasion and tear resistance