Clean lines and modern styling define the Atomic pants while a heavy duty 500D Hitena outer shell combined with adjustable knee armor and removable hip/tail padding make for some very real piece of mind. Features: Heavy Duty 500D Hitena nylon outer Removable thigh vent panels reveal FreeAir mesh Height adjustable C.E. approved knee armor SureFit adjustable waistband & leg adjustments Removable high density hip padding Removable tail padding