Joe Rocket Atomic Pants - X-Large/Gunmetal/Grey/Black 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. 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